Vendor tinycbor, since v5 no longer includes it

lib/cbor/CMakeLists.txt

@@ -0,0 +1,22 @@
+idf_component_register(SRCS "tinycbor/src/cborencoder_close_container_checked.c"
+                            "tinycbor/src/cborencoder.c"
+                            "tinycbor/src/cborencoder_float.c"
+                            "tinycbor/src/cborerrorstrings.c"
+                            "tinycbor/src/cborparser_dup_string.c"
+                            "tinycbor/src/cborparser.c"
+                            "tinycbor/src/cborparser_float.c"
+                            "tinycbor/src/cborpretty_stdio.c"
+                            "tinycbor/src/cborpretty.c"
+                            "tinycbor/src/cbortojson.c"
+                            "tinycbor/src/cborvalidation.c"
+                            "tinycbor/src/open_memstream.c"
+                    INCLUDE_DIRS "port/include"
+                    PRIV_INCLUDE_DIRS "tinycbor/src")
+
+# for open_memstream.c
+set_source_files_properties(tinycbor/src/open_memstream.c PROPERTIES COMPILE_DEFINITIONS "__linux__")
+
+# workaround for the fact that we are passing -ffreestanding to Clang
+if(CMAKE_C_COMPILER_ID MATCHES "Clang")
+    target_compile_options(${COMPONENT_LIB} PRIVATE "-U __STDC_HOSTED__")
+endif()

lib/cbor/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Intel Corporation
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

lib/cbor/README.md

@@ -0,0 +1,13 @@
+Concise Binary Object Representation (CBOR) Library
+---------------------------------------------------
+
+To build TinyCBOR:
+
+  make
+
+If you want to change the compiler or pass extra compiler flags:
+
+  make CC=clang CFLAGS="-m32 -Oz" LDFLAGS="-m32"
+
+Documentation: https://intel.github.io/tinycbor/current/
+

lib/cbor/idf_component.yml

@@ -0,0 +1,5 @@
+dependencies:
+  idf: '>=4.3'
+description: 'CBOR: Concise Binary Object Representation Library'
+url: https://github.com/espressif/idf-extra-components/tree/master/cbor
+version: 0.6.0

lib/cbor/port/include/cbor.h

@@ -0,0 +1,2 @@
+#include "../../tinycbor/src/cbor.h"
+#include "../../tinycbor/src/cborjson.h"

lib/cbor/test/CMakeLists.txt

@@ -0,0 +1,4 @@
+idf_component_register(SRC_DIRS "."
+                    PRIV_INCLUDE_DIRS "."
+                    REQUIRES unity
+                    PRIV_REQUIRES cmock cbor)

lib/cbor/test/test.c

@@ -0,0 +1,230 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Unlicense OR CC0-1.0
+ */
+#include <stdio.h>
+#include <freertos/FreeRTOS.h>
+
+#include "unity.h"
+#if __has_include("esp_random.h")
+#include "esp_random.h"
+#else
+#include "esp_system.h"
+#endif
+
+#include "cbor.h"
+
+#define CBOR_CHECK(a, str, goto_tag, ret_value, ...)                              \
+    do                                                                            \
+    {                                                                             \
+        if ((a) != CborNoError)                                                   \
+        {                                                                         \
+            printf("%s(%d): " str, __FUNCTION__, __LINE__, ##__VA_ARGS__);        \
+            ret = ret_value;                                                      \
+            goto goto_tag;                                                        \
+        }                                                                         \
+    } while (0)
+
+static void indent(int nestingLevel)
+{
+    while (nestingLevel--) {
+        printf("  ");
+    }
+}
+
+static void dumpbytes(const uint8_t *buf, size_t len)
+{
+    while (len--) {
+        printf("%02X ", *buf++);
+    }
+}
+
+/**
+ * Decode CBOR data manuallly
+ */
+static CborError example_dump_cbor_buffer(CborValue *it, int nestingLevel)
+{
+    CborError ret = CborNoError;
+    while (!cbor_value_at_end(it)) {
+        CborType type = cbor_value_get_type(it);
+
+        indent(nestingLevel);
+        switch (type) {
+        case CborArrayType: {
+            CborValue recursed;
+            assert(cbor_value_is_container(it));
+            puts("Array[");
+            ret = cbor_value_enter_container(it, &recursed);
+            CBOR_CHECK(ret, "enter container failed", err, ret);
+            ret = example_dump_cbor_buffer(&recursed, nestingLevel + 1);
+            CBOR_CHECK(ret, "recursive dump failed", err, ret);
+            ret = cbor_value_leave_container(it, &recursed);
+            CBOR_CHECK(ret, "leave container failed", err, ret);
+            indent(nestingLevel);
+            puts("]");
+            continue;
+        }
+        case CborMapType: {
+            CborValue recursed;
+            assert(cbor_value_is_container(it));
+            puts("Map{");
+            ret = cbor_value_enter_container(it, &recursed);
+            CBOR_CHECK(ret, "enter container failed", err, ret);
+            ret = example_dump_cbor_buffer(&recursed, nestingLevel + 1);
+            CBOR_CHECK(ret, "recursive dump failed", err, ret);
+            ret = cbor_value_leave_container(it, &recursed);
+            CBOR_CHECK(ret, "leave container failed", err, ret);
+            indent(nestingLevel);
+            puts("}");
+            continue;
+        }
+        case CborIntegerType: {
+            int64_t val;
+            ret = cbor_value_get_int64(it, &val);
+            CBOR_CHECK(ret, "parse int64 failed", err, ret);
+            printf("%lld\n", (long long)val);
+            break;
+        }
+        case CborByteStringType: {
+            uint8_t *buf;
+            size_t n;
+            ret = cbor_value_dup_byte_string(it, &buf, &n, it);
+            CBOR_CHECK(ret, "parse byte string failed", err, ret);
+            dumpbytes(buf, n);
+            puts("");
+            free(buf);
+            continue;
+        }
+        case CborTextStringType: {
+            char *buf;
+            size_t n;
+            ret = cbor_value_dup_text_string(it, &buf, &n, it);
+            CBOR_CHECK(ret, "parse text string failed", err, ret);
+            puts(buf);
+            free(buf);
+            continue;
+        }
+        case CborTagType: {
+            CborTag tag;
+            ret = cbor_value_get_tag(it, &tag);
+            CBOR_CHECK(ret, "parse tag failed", err, ret);
+            printf("Tag(%lld)\n", (long long)tag);
+            break;
+        }
+        case CborSimpleType: {
+            uint8_t type;
+            ret = cbor_value_get_simple_type(it, &type);
+            CBOR_CHECK(ret, "parse simple type failed", err, ret);
+            printf("simple(%u)\n", type);
+            break;
+        }
+        case CborNullType:
+            puts("null");
+            break;
+        case CborUndefinedType:
+            puts("undefined");
+            break;
+        case CborBooleanType: {
+            bool val;
+            ret = cbor_value_get_boolean(it, &val);
+            CBOR_CHECK(ret, "parse boolean type failed", err, ret);
+            puts(val ? "true" : "false");
+            break;
+        }
+        case CborHalfFloatType: {
+            uint16_t val;
+            ret = cbor_value_get_half_float(it, &val);
+            CBOR_CHECK(ret, "parse half float type failed", err, ret);
+            printf("__f16(%04x)\n", val);
+            break;
+        }
+        case CborFloatType: {
+            float val;
+            ret = cbor_value_get_float(it, &val);
+            CBOR_CHECK(ret, "parse float type failed", err, ret);
+            printf("%g\n", val);
+            break;
+        }
+        case CborDoubleType: {
+            double val;
+            ret = cbor_value_get_double(it, &val);
+            CBOR_CHECK(ret, "parse double float type failed", err, ret);
+            printf("%g\n", val);
+            break;
+        }
+        case CborInvalidType: {
+            ret = CborErrorUnknownType;
+            CBOR_CHECK(ret, "unknown cbor type", err, ret);
+            break;
+        }
+        }
+
+        ret = cbor_value_advance_fixed(it);
+        CBOR_CHECK(ret, "fix value failed", err, ret);
+    }
+    return CborNoError;
+err:
+    return ret;
+}
+
+
+TEST_CASE("CBOR example", "[cbor]")
+{
+    CborEncoder root_encoder;
+    CborParser root_parser;
+    CborValue it;
+    uint8_t buf[100];
+
+    // Initialize the outermost cbor encoder
+    cbor_encoder_init(&root_encoder, buf, sizeof(buf), 0);
+
+    // Create an array containing several items
+    CborEncoder array_encoder;
+    CborEncoder map_encoder;
+    cbor_encoder_create_array(&root_encoder, &array_encoder, 5); // [
+    // 1. Create a map containing several pairs
+    cbor_encoder_create_map(&array_encoder, &map_encoder, 3); // {
+    // chip:esp32
+    cbor_encode_text_stringz(&map_encoder, "chip");
+    cbor_encode_text_stringz(&map_encoder, "esp32");
+    // unicore:false
+    cbor_encode_text_stringz(&map_encoder, "unicore");
+    cbor_encode_boolean(&map_encoder, false);
+    // ip:[192,168,1,100]
+    cbor_encode_text_stringz(&map_encoder, "ip");
+    CborEncoder array2;
+    cbor_encoder_create_array(&map_encoder, &array2, 4); // [
+    // Encode several numbers
+    cbor_encode_uint(&array2, 192);
+    cbor_encode_uint(&array2, 168);
+    cbor_encode_uint(&array2, 1);
+    cbor_encode_uint(&array2, 100);
+    cbor_encoder_close_container(&map_encoder, &array2);        // ]
+    cbor_encoder_close_container(&array_encoder, &map_encoder); // }
+    // 2. Encode float number
+    cbor_encode_float(&array_encoder, 3.14);
+    // 3. Encode simple value
+    cbor_encode_simple_value(&array_encoder, 99);
+    // 4. Encode a string
+    cbor_encode_text_stringz(&array_encoder, "2019-07-10 09:00:00+0000");
+    // 5. Encode a undefined value
+    cbor_encode_undefined(&array_encoder);
+    cbor_encoder_close_container(&root_encoder, &array_encoder); // ]
+
+    // If error happend when encoding, then this value should be meaningless
+    printf("encoded buffer size %d", cbor_encoder_get_buffer_size(&root_encoder, buf));
+
+    // Initialize the cbor parser and the value iterator
+    cbor_parser_init(buf, sizeof(buf), 0, &root_parser, &it);
+
+    printf("convert CBOR to JSON");
+    // Dump the values in JSON format
+    cbor_value_to_json(stdout, &it, 0);
+    puts("");
+
+    printf("decode CBOR manually: ");
+    // Decode CBOR data manully
+    TEST_ESP_OK(example_dump_cbor_buffer(&it, 0));
+}
+

lib/cbor/tinycbor/.appveyor.yml

@@ -0,0 +1,28 @@
+version: 0.6-build-{build}
+pull_requests:
+  do_not_increment_build_number: true
+image:
+- Visual Studio 2017
+- Visual Studio 2019
+install:
+- cmd: >-
+    if /i "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2017" (call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" x86) & (set QTDIR=C:\Qt\5.13\msvc2017)
+
+    if /i "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2019" (call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvarsall.bat" x64) & (set QTDIR=C:\Qt\6.1\msvc2019_64)
+
+    set path=%PATH%;%QTDIR%\bin
+build_script:
+- cmd: >-
+    nmake -f Makefile.nmake -nologo CFLAGS="-W3 -Os -MDd"
+
+    cd tests
+
+    qmake CONFIG-=release CONFIG+=debug
+
+    nmake -nologo -s
+test_script:
+- cmd: >-
+    nmake -s -nologo TESTARGS=-silent check
+artifacts:
+- path: lib\tinycbor.lib
+deploy: off

lib/cbor/tinycbor/.gitattributes

@@ -0,0 +1,4 @@
+.tag                    export-subst
+.gitignore              export-ignore
+.gitattributes          export-ignore
+.appveyor.yml           text

lib/cbor/tinycbor/.gitignore

@@ -0,0 +1,81 @@
+# Frequent generated files
+callgrind.out.*
+pcviewer.cfg
+*~
+*.a
+*.la
+*.core
+*.d
+*.dylib
+*.moc
+*.o
+*.obj
+*.orig
+*.swp
+*.rej
+*.so
+*.so.*
+*.pbxuser
+*.mode1
+*.mode1v3
+*_pch.h.cpp
+*_resource.rc
+.#*
+*.*#
+core
+.qmake.cache
+.qmake.stash
+.qmake.vars
+.device.vars
+tags
+.DS_Store
+*.debug
+Makefile*
+*.prl
+*.app
+*.pro.user*
+*.qmlproject.user*
+*.gcov
+*.gcda
+*.gcno
+*.flc
+.*.swp
+tinycbor.pc
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.vcxproj
+*.vcxproj.filters
+*.vcxproj.user
+*.exe.embed.manifest
+*.exe_manifest.rc
+*.exe_manifest.res
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# INTEGRITY generated files
+*.gpj
+*.int
+*.ael
+*.dla
+*.dnm
+*.dep
+*.map
+
+bin
+doc
+lib
+src/cjson
+src/doxygen.log
+!/Makefile
+.config

lib/cbor/tinycbor/.tag

@@ -0,0 +1 @@
+$Format:%H$

lib/cbor/tinycbor/.travis.yml

@@ -0,0 +1,92 @@
+env:
+  - BUILD_DOCS=false
+jobs:
+  include:
+    - # only build docs on main
+      if: branch = main
+      env: BUILD_DOCS=true
+
+language: cpp
+matrix:
+  include:
+    - os: linux
+      dist: xenial
+      addons:
+        apt:
+          sources:
+            - sourceline: 'ppa:beineri/opt-qt-5.12.1-xenial'
+          packages:
+            - qt512base valgrind
+            - doxygen
+      env:
+        - QMAKESPEC=linux-g++
+        - EVAL="CC=gcc && CXX=g++"
+        - CFLAGS="-Os"
+        - LDFLAGS="-Wl,--no-undefined -lm"
+        - QMAKEFLAGS="-config release"
+        - QT_NO_CPU_FEATURE=rdrnd
+    - os: linux
+      dist: xenial
+      addons:
+        apt:
+          sources:
+            - sourceline: 'ppa:beineri/opt-qt-5.12.1-xenial'
+          packages:
+            - qt512base
+      env:
+        - QMAKESPEC=linux-clang
+        - EVAL="CC=clang && CXX=clang++"
+        - CFLAGS="-Oz"
+        - LDFLAGS="-Wl,--no-undefined -lm"
+        - QMAKEFLAGS="-config release"
+        - MAKEFLAGS=-s
+        - TESTARGS=-silent
+    - os: linux
+      dist: xenial
+      env:
+        - QMAKESPEC=linux-gcc-freestanding
+        - EVAL="CXX=false"
+        - CFLAGS="-ffreestanding -Os"
+        - LDFLAGS="-Wl,--no-undefined -lm"
+    - os: linux
+      dist: xenial
+      env:
+        - QMAKESPEC=linux-gcc-no-math
+        - EVAL="CXX=false && touch src/math.h src/float.h"
+        - CFLAGS="-ffreestanding -DCBOR_NO_FLOATING_POINT -Os"
+        - LDFLAGS="-Wl,--no-undefined"
+        - LDLIBS=""
+    - os: osx
+      env:
+        - QMAKESPEC=macx-clang
+        - CFLAGS="-Oz"
+        - QMAKEFLAGS="-config debug"
+        - MAKEFLAGS=-s
+        - TESTARGS=-silent
+        - PATH=/usr/local/opt/qt5/bin:$PATH
+install:
+  - if [ "${TRAVIS_OS_NAME}" != "linux" ]; then
+        brew update;
+        brew install qt5;
+    fi
+script:
+  - PATH=`echo /opt/qt*/bin`:$PATH
+  - eval "$EVAL"
+  - make -s -f Makefile.configure configure | tee .config
+  - make -k
+        CFLAGS="$CFLAGS -march=native -g1 -Wall -Wextra -Werror"
+        CPPFLAGS="-DNDEBUG -DCBOR_ENCODER_WRITER_CONTROL=-1 -DCBOR_PARSER_READER_CONTROL=-1"
+        lib/libtinycbor.a
+  - size lib/libtinycbor.a | tee sizes
+  - make -s clean
+  - make -k
+        CFLAGS="$CFLAGS -O0 -g"
+        LDFLAGS="$LDFLAGS" ${LDLIBS+LDLIBS="$LDLIBS"}
+  - grep -q freestanding-pass .config || make
+        QMAKEFLAGS="$QMAKEFLAGS QMAKE_CXX=$CXX"
+        tests/Makefile
+  - grep -q freestanding-pass .config ||
+        (cd tests && make TESTARGS=-silent check -k
+        TESTRUNNER=`which valgrind 2>/dev/null`)
+  - make -s clean
+  - ! [ $BUILD_DOCS ] || ./scripts/update-docs.sh

lib/cbor/tinycbor/Doxyfile

@@ -0,0 +1,49 @@
+PROJECT_NAME           = "TinyCBOR $(VERSION) API"
+OUTPUT_DIRECTORY       = ../doc
+ABBREVIATE_BRIEF       =
+SHORT_NAMES            = YES
+JAVADOC_AUTOBRIEF      = YES
+QT_AUTOBRIEF           = YES
+TAB_SIZE               = 8
+ALIASES                = "value=\arg \c"
+OPTIMIZE_OUTPUT_FOR_C  = YES
+EXTRACT_STATIC         = YES
+EXTRACT_LOCAL_CLASSES  = NO
+HIDE_UNDOC_MEMBERS     = YES
+HIDE_UNDOC_CLASSES     = YES
+GENERATE_TODOLIST      = NO
+GENERATE_TESTLIST      = NO
+GENERATE_BUGLIST       = NO
+GENERATE_DEPRECATEDLIST= NO
+SHOW_USED_FILES        = NO
+WARN_IF_UNDOCUMENTED   = NO
+WARN_LOGFILE           = doxygen.log
+INPUT                  = .
+FILE_PATTERNS          = *.h \
+                         *.c \
+                         *.dox
+EXCLUDE_PATTERNS       = *_p.h
+STRIP_CODE_COMMENTS    = NO
+REFERENCED_BY_RELATION = YES
+IGNORE_PREFIX          = cbor_ \
+                         Cbor
+HTML_TIMESTAMP         = NO
+GENERATE_HTMLHELP      = YES
+GENERATE_CHI           = YES
+BINARY_TOC             = YES
+TOC_EXPAND             = YES
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+SEARCHENGINE           = NO
+GENERATE_LATEX         = NO
+COMPACT_LATEX          = YES
+MACRO_EXPANSION        = YES
+PREDEFINED             = DOXYGEN \
+                         CBOR_INLINE_API=
+CLASS_DIAGRAMS         = NO
+CLASS_GRAPH            = NO
+COLLABORATION_GRAPH    = NO
+GROUP_GRAPHS           = NO
+INCLUDE_GRAPH          = NO
+INCLUDED_BY_GRAPH      = NO
+GRAPHICAL_HIERARCHY    = NO
+DIRECTORY_GRAPH        = NO

lib/cbor/tinycbor/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Intel Corporation
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

lib/cbor/tinycbor/Makefile

@@ -0,0 +1,250 @@
+# Variables:
+prefix = /usr/local
+exec_prefix = $(prefix)
+bindir = $(exec_prefix)/bin
+libdir = $(exec_prefix)/lib
+includedir = $(prefix)/include
+pkgconfigdir = $(libdir)/pkgconfig
+
+CFLAGS = -Wall -Wextra
+LDFLAGS_GCSECTIONS = -Wl,--gc-sections
+LDFLAGS += $(if $(gc_sections-pass),$(LDFLAGS_GCSECTIONS))
+LDLIBS = -lm
+
+GIT_ARCHIVE = git archive --prefix="$(PACKAGE)/" -9
+INSTALL = install
+INSTALL_DATA = $(INSTALL) -m 644
+INSTALL_PROGRAM = $(INSTALL) -m 755
+QMAKE = qmake
+MKDIR = mkdir -p
+RMDIR = rmdir
+SED = sed
+
+# Our sources
+TINYCBOR_HEADERS = src/cbor.h src/cborjson.h src/tinycbor-version.h
+TINYCBOR_FREESTANDING_SOURCES = \
+	src/cborerrorstrings.c \
+	src/cborencoder.c \
+	src/cborencoder_close_container_checked.c \
+	src/cborencoder_float.c \
+	src/cborparser.c \
+	src/cborparser_float.c \
+	src/cborpretty.c \
+#
+CBORDUMP_SOURCES = tools/cbordump/cbordump.c
+
+BUILD_SHARED = $(shell file -L /bin/sh 2>/dev/null | grep -q ELF && echo 1)
+BUILD_STATIC = 1
+
+ifneq ($(BUILD_STATIC),1)
+ifneq ($(BUILD_SHARED),1)
+  $(error error: BUILD_STATIC and BUILD_SHARED can not be both disabled)
+endif
+endif
+
+INSTALL_TARGETS += $(bindir)/cbordump
+ifeq ($(BUILD_SHARED),1)
+BINLIBRARY=lib/libtinycbor.so
+INSTALL_TARGETS += $(libdir)/libtinycbor.so.$(VERSION)
+endif
+ifeq ($(BUILD_STATIC),1)
+BINLIBRARY=lib/libtinycbor.a
+INSTALL_TARGETS += $(libdir)/libtinycbor.a
+endif
+INSTALL_TARGETS += $(pkgconfigdir)/tinycbor.pc
+INSTALL_TARGETS += $(TINYCBOR_HEADERS:src/%=$(includedir)/tinycbor/%)
+
+# setup VPATH
+MAKEFILE := $(lastword $(MAKEFILE_LIST))
+SRCDIR := $(dir $(MAKEFILE))
+VPATH = $(SRCDIR):$(SRCDIR)/src
+
+# Our version
+GIT_DIR := $(strip $(shell git -C $(SRCDIR). rev-parse --git-dir 2> /dev/null))
+VERSION = $(shell cat $(SRCDIR)VERSION)
+SOVERSION = $(shell cut -f1-2 -d. $(SRCDIR)VERSION)
+PACKAGE = tinycbor-$(VERSION)
+
+# Check that QMAKE is Qt 5
+ifeq ($(origin QMAKE),file)
+  check_qmake = $(strip $(shell $(1) -query QT_VERSION 2>/dev/null | cut -b1))
+  ifneq ($(call check_qmake,$(QMAKE)),5)
+    QMAKE := qmake -qt5
+    ifneq ($(call check_qmake,$(QMAKE)),5)
+      QMAKE := qmake-qt5
+      ifneq ($(call check_qmake,$(QMAKE)),5)
+        QMAKE := @echo >&2 $(MAKEFILE): Cannot find a Qt 5 qmake; false
+      endif
+    endif
+  endif
+endif
+
+-include .config
+
+ifeq ($(wildcard .config),)
+    $(info .config file not yet created)
+endif
+
+ifeq ($(freestanding-pass),1)
+TINYCBOR_SOURCES = $(TINYCBOR_FREESTANDING_SOURCES)
+else
+TINYCBOR_SOURCES = \
+	$(TINYCBOR_FREESTANDING_SOURCES) \
+	src/cborparser_dup_string.c \
+	src/cborpretty_stdio.c \
+	src/cbortojson.c \
+	src/cborvalidation.c \
+#
+# if open_memstream is unavailable on the system, try to implement our own
+# version using funopen or fopencookie
+ifeq ($(open_memstream-pass),)
+  ifeq ($(funopen-pass)$(fopencookie-pass),)
+    CFLAGS += -DWITHOUT_OPEN_MEMSTREAM
+    ifeq ($(wildcard .config),.config)
+        $(warning warning: funopen and fopencookie unavailable, open_memstream can not be implemented and conversion to JSON will not work properly!)
+    endif
+  else
+    TINYCBOR_SOURCES += src/open_memstream.c
+  endif
+endif
+endif
+
+# json2cbor depends on an external library (cjson)
+ifneq ($(cjson-pass)$(system-cjson-pass),)
+  JSON2CBOR_SOURCES = tools/json2cbor/json2cbor.c
+  INSTALL_TARGETS += $(bindir)/json2cbor
+  ifeq ($(system-cjson-pass),1)
+    LDFLAGS_CJSON = -lcjson
+  else
+    JSON2CBOR_SOURCES += src/cjson/cJSON.c
+    json2cbor_CCFLAGS = -I$(SRCDIR)src/cjson
+  endif
+endif
+
+# Rules
+all: .config \
+	$(if $(subst 0,,$(BUILD_STATIC)),lib/libtinycbor.a) \
+	$(if $(subst 0,,$(BUILD_SHARED)),lib/libtinycbor.so) \
+	$(if $(freestanding-pass),,bin/cbordump) \
+	tinycbor.pc
+all: $(if $(JSON2CBOR_SOURCES),bin/json2cbor)
+check: tests/Makefile | $(BINLIBRARY)
+	$(MAKE) -C tests check
+silentcheck: | $(BINLIBRARY)
+	TESTARGS=-silent $(MAKE) -f $(MAKEFILE) -s check
+configure: .config
+.config: Makefile.configure
+	$(MAKE) -f $(SRCDIR)Makefile.configure OUT='>&9' configure 9> $@
+
+lib/libtinycbor-freestanding.a: $(TINYCBOR_FREESTANDING_SOURCES:.c=.o)
+	@$(MKDIR) -p lib
+	$(AR) cqs $@ $^
+
+lib/libtinycbor.a: $(TINYCBOR_SOURCES:.c=.o)
+	@$(MKDIR) -p lib
+	$(AR) cqs $@ $^
+
+lib/libtinycbor.so: $(TINYCBOR_SOURCES:.c=.pic.o)
+	@$(MKDIR) -p lib
+	$(CC) -shared -Wl,-soname,libtinycbor.so.$(SOVERSION) -o lib/libtinycbor.so.$(VERSION) $(LDFLAGS) $^ $(LDLIBS)
+	cd lib ; ln -sf libtinycbor.so.$(VERSION) libtinycbor.so ; ln -sf libtinycbor.so.$(VERSION) libtinycbor.so.$(SOVERSION)
+
+bin/cbordump: $(CBORDUMP_SOURCES:.c=.o) $(BINLIBRARY)
+	@$(MKDIR) -p bin
+	$(CC) -o $@ $(LDFLAGS) $^ $(LDLIBS)
+
+bin/json2cbor: $(JSON2CBOR_SOURCES:.c=.o) $(BINLIBRARY)
+	@$(MKDIR) -p bin
+	$(CC) -o $@ $(LDFLAGS) $^ $(LDFLAGS_CJSON) $(LDLIBS)
+
+tinycbor.pc: tinycbor.pc.in
+	$(SED) > $@ < $< \
+		-e 's,@prefix@,$(prefix),' \
+		-e 's,@exec_prefix@,$(exec_prefix),' \
+		-e 's,@libdir@,$(libdir),' \
+		-e 's,@includedir@,$(includedir),' \
+		-e 's,@version@,$(VERSION),'
+
+tests/Makefile: tests/tests.pro
+	$(QMAKE) $(QMAKEFLAGS) -o $@ $<
+
+$(PACKAGE).tar.gz: | .git
+	GIT_DIR=$(SRCDIR).git $(GIT_ARCHIVE) --format=tar.gz -o "$(PACKAGE).tar.gz" HEAD
+$(PACKAGE).zip: | .git
+	GIT_DIR=$(SRCDIR).git $(GIT_ARCHIVE) --format=zip -o "$(PACKAGE).zip" HEAD
+
+$(DESTDIR)$(libdir)/%: lib/%
+	$(INSTALL) -d $(@D)
+	$(INSTALL_DATA) $< $@
+$(DESTDIR)$(bindir)/%: bin/%
+	$(INSTALL) -d $(@D)
+	$(INSTALL_PROGRAM) $< $@
+$(DESTDIR)$(pkgconfigdir)/%: %
+	$(INSTALL) -d $(@D)
+	$(INSTALL_DATA) $< $@
+$(DESTDIR)$(includedir)/tinycbor/%: src/%
+	$(INSTALL) -d $(@D)
+	$(INSTALL_DATA) $< $@
+
+install-strip:
+	$(MAKE) -f $(MAKEFILE) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' install
+
+install: $(INSTALL_TARGETS:%=$(DESTDIR)%)
+ifeq ($(BUILD_SHARED),1)
+	ln -sf libtinycbor.so.$(VERSION) $(DESTDIR)$(libdir)/libtinycbor.so
+	ln -sf libtinycbor.so.$(VERSION) $(DESTDIR)$(libdir)/libtinycbor.so.$(SOVERSION)
+endif
+
+uninstall:
+	$(RM) $(INSTALL_TARGETS:%=$(DESTDIR)%)
+	$(RM) $(DESTDIR)$(libdir)/libtinycbor.so
+	$(RM) $(DESTDIR)$(libdir)/libtinycbor.so.$(SOVERSION)
+
+mostlyclean:
+	$(RM) $(TINYCBOR_SOURCES:.c=.o)
+	$(RM) $(TINYCBOR_SOURCES:.c=.pic.o)
+	$(RM) $(CBORDUMP_SOURCES:.c=.o)
+
+clean: mostlyclean
+	$(RM) bin/cbordump
+	$(RM) bin/json2cbor
+	$(RM) lib/libtinycbor.a
+	$(RM) lib/libtinycbor-freestanding.a
+	$(RM) tinycbor.pc
+	$(RM) lib/libtinycbor.so*
+	test -e tests/Makefile && $(MAKE) -C tests clean || :
+
+distclean: clean
+	test -e tests/Makefile && $(MAKE) -C tests distclean || :
+
+docs:
+	cd $(SRCDIR)src && VERSION=$(VERSION) doxygen $(SRCDIR)/../Doxyfile
+
+dist: $(PACKAGE).tar.gz $(PACKAGE).zip
+distcheck: .git
+	-$(RM) -r $${TMPDIR-/tmp}/tinycbor-distcheck
+	GIT_DIR=$(SRCDIR).git git archive --prefix=tinycbor-distcheck/ --format=tar HEAD | tar -xf - -C $${TMPDIR-/tmp}
+	cd $${TMPDIR-/tmp}/tinycbor-distcheck && $(MAKE) silentcheck
+	$(RM) -r $${TMPDIR-/tmp}/tinycbor-distcheck
+
+tag: distcheck
+	@cd $(SRCDIR). && perl scripts/maketag.pl
+
+.PHONY: all check silentcheck configure install uninstall
+.PHONY: mostlyclean clean distclean
+.PHONY: docs dist distcheck release
+.SECONDARY:
+
+cflags := $(CPPFLAGS) -I$(SRCDIR)src
+cflags += -std=gnu99 $(CFLAGS) \
+	-Werror=incompatible-pointer-types \
+	-Werror=implicit-function-declaration \
+	-Werror=int-conversion
+%.o: %.c
+	@test -d $(@D) || $(MKDIR) $(@D)
+	$(CC) $(cflags) $($(basename $(notdir $@))_CCFLAGS) -c -o $@ $<
+%.pic.o: %.c
+	@test -d $(@D) || $(MKDIR) $(@D)
+	$(CC) $(cflags) -fPIC $($(basename $(notdir $@))_CCFLAGS) -c -o $@ $<
+
+-include src/*.d

lib/cbor/tinycbor/README

@@ -0,0 +1,13 @@
+Concise Binary Object Representation (CBOR) Library
+---------------------------------------------------
+
+To build TinyCBOR:
+
+  make
+
+If you want to change the compiler or pass extra compiler flags:
+
+  make CC=clang CFLAGS="-m32 -Oz" LDFLAGS="-m32"
+
+Documentation: https://intel.github.io/tinycbor/current/
+

lib/cbor/tinycbor/TODO

@@ -0,0 +1,25 @@
+==== To Do list for libcbor ====
+=== General ===
+* API review
+* Benchmark
+* Write examples
+** Simple decoder
+** Decoder to JSON
+** Windowed encoding/decoding (limited memory)
+
+=== Encoder ===
+* Write API docs
+* Add API for creating indeterminate-length arrays and maps
+* Add API for creating indeterminate-length strings
+* Add API for relaxing doubles to floats and to integers
+* Add length-checking of the sub-containers (#ifndef CBOR_ENCODER_NO_USER_CHECK)
+* Decide how to indicate number of bytes needed
+** Suggestion: return negative number from the functions
+
+=== Decoder ===
+* Write functions not yet implemented
+* Add API for stream-decoding strings
+* Add API for checking known tags and simple types
+* (unlikely) Add API for checking the pairing of a tag and the tagged type
+* Write tests for error conditions
+* Fuzzy-test the decoder

lib/cbor/tinycbor/VERSION

@@ -0,0 +1 @@
+0.6.0

lib/cbor/tinycbor/examples/examples.pro

@@ -0,0 +1,2 @@
+TEMPLATE = subdirs
+SUBDIRS = simplereader.pro

lib/cbor/tinycbor/examples/simplereader.c

@@ -0,0 +1,185 @@
+#include "../src/cbor.h"
+
+#include <sys/stat.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+static uint8_t *readfile(const char *fname, size_t *size)
+{
+    struct stat st;
+    FILE *f = fopen(fname, "rb");
+    if (!f)
+        return NULL;
+    if (fstat(fileno(f), &st) == -1)
+        return NULL;
+    uint8_t *buf = malloc(st.st_size);
+    if (buf == NULL)
+        return NULL;
+    *size = fread(buf, st.st_size, 1, f) == 1 ? st.st_size : 0;
+    fclose(f);
+    return buf;
+}
+
+static void indent(int nestingLevel)
+{
+    while (nestingLevel--)
+        printf("  ");
+}
+
+static void dumpbytes(const uint8_t *buf, size_t len)
+{
+    printf("\"");
+    while (len--)
+        printf("\\x%02X", *buf++);
+    printf("\"");
+}
+
+static CborError dumprecursive(CborValue *it, int nestingLevel)
+{
+    while (!cbor_value_at_end(it)) {
+        CborError err;
+        CborType type = cbor_value_get_type(it);
+
+        indent(nestingLevel);
+        switch (type) {
+        case CborArrayType:
+        case CborMapType: {
+            // recursive type
+            CborValue recursed;
+            assert(cbor_value_is_container(it));
+            puts(type == CborArrayType ? "Array[" : "Map[");
+            err = cbor_value_enter_container(it, &recursed);
+            if (err)
+                return err;       // parse error
+            err = dumprecursive(&recursed, nestingLevel + 1);
+            if (err)
+                return err;       // parse error
+            err = cbor_value_leave_container(it, &recursed);
+            if (err)
+                return err;       // parse error
+            indent(nestingLevel);
+            puts("]");
+            continue;
+        }
+
+        case CborIntegerType: {
+            int64_t val;
+            cbor_value_get_int64(it, &val);     // can't fail
+            printf("%lld\n", (long long)val);
+            break;
+        }
+
+        case CborByteStringType: {
+            uint8_t *buf;
+            size_t n;
+            err = cbor_value_dup_byte_string(it, &buf, &n, it);
+            if (err)
+                return err;     // parse error
+            dumpbytes(buf, n);
+            puts("");
+            free(buf);
+            continue;
+        }
+
+        case CborTextStringType: {
+            char *buf;
+            size_t n;
+            err = cbor_value_dup_text_string(it, &buf, &n, it);
+            if (err)
+                return err;     // parse error
+            printf("\"%s\"\n", buf);
+            free(buf);
+            continue;
+        }
+
+        case CborTagType: {
+            CborTag tag;
+            cbor_value_get_tag(it, &tag);       // can't fail
+            printf("Tag(%lld)\n", (long long)tag);
+            break;
+        }
+
+        case CborSimpleType: {
+            uint8_t type;
+            cbor_value_get_simple_type(it, &type);  // can't fail
+            printf("simple(%u)\n", type);
+            break;
+        }
+
+        case CborNullType:
+            puts("null");
+            break;
+
+        case CborUndefinedType:
+            puts("undefined");
+            break;
+
+        case CborBooleanType: {
+            bool val;
+            cbor_value_get_boolean(it, &val);       // can't fail
+            puts(val ? "true" : "false");
+            break;
+        }
+
+        case CborDoubleType: {
+            double val;
+            if (false) {
+                float f;
+        case CborFloatType:
+                cbor_value_get_float(it, &f);
+                val = f;
+            } else {
+                cbor_value_get_double(it, &val);
+            }
+            printf("%g\n", val);
+            break;
+        }
+        case CborHalfFloatType: {
+            uint16_t val;
+            cbor_value_get_half_float(it, &val);
+            printf("__f16(%04x)\n", val);
+            break;
+        }
+
+        case CborInvalidType:
+            assert(false);      // can't happen
+            break;
+        }
+
+        err = cbor_value_advance_fixed(it);
+        if (err)
+            return err;
+    }
+    return CborNoError;
+}
+
+int main(int argc, char **argv)
+{
+    if (argc != 2) {
+        puts("simplereader <filename>");
+        return 1;
+    }
+
+    size_t length;
+    uint8_t *buf = readfile(argv[1], &length);
+    if (!buf) {
+        perror("readfile");
+        return 1;
+    }
+
+    CborParser parser;
+    CborValue it;
+    CborError err = cbor_parser_init(buf, length, 0, &parser, &it);
+    if (!err)
+        err = dumprecursive(&it, 0);
+    free(buf);
+
+    if (err) {
+        fprintf(stderr, "CBOR parsing failure at offset %ld: %s\n",
+                it.ptr - buf, cbor_error_string(err));
+        return 1;
+    }
+    return 0;
+}

lib/cbor/tinycbor/examples/simplereader.pro

@@ -0,0 +1,3 @@
+CONFIG -= qt
+SOURCES = simplereader.c
+include(../src/src.pri)

lib/cbor/tinycbor/scripts/maketag.pl

@@ -0,0 +1,91 @@
+#!perl
+use strict;
+sub run(@) {
+    open PROC, "-|", @_ or die("Cannot run $_[0]: $!");
+    my @out;
+    while (<PROC>) {
+        chomp;
+        push @out, $_;
+    }
+    close PROC;
+    return @out;
+}
+
+my @tags = run("git", "tag");
+my @v = run("git", "show", "HEAD:VERSION");
+my $v = $v[0];
+
+my $tagfile = ".git/TAG_EDITMSG";
+open TAGFILE, ">", $tagfile
+    or die("Cannot create file for editing tag message: $!");
+select TAGFILE;
+print "TinyCBOR release $v\n";
+print "\n";
+print "# Write something nice about this release here\n";
+
+# Do we have a commit template?
+my @result = run("git", "config", "--get", "commit.template");
+if (scalar @result) {
+    open TEMPLATE, "<", $result[0];
+    map { print $_; } <TEMPLATE>;
+    close TEMPLATE;
+}
+
+print "\n";
+print "# Commit log\n";
+open LOG, "-|", "git", "shortlog", "-e", "--no-merges", "--not", @tags;
+map { print "#  $_"; } <LOG>;
+close LOG;
+
+print "# Header diff:\n";
+open DIFF, "-|", "git", "diff", "HEAD", "--not", @tags, "--", 'src/*.h', ':!*_p.h';
+map { print "# $_"; } <DIFF>;
+close DIFF;
+
+select STDOUT;
+close TAGFILE;
+
+# Run the editor.
+# We use system so that stdin, stdout and stderr are forwarded.
+@result = run("git", "var", "GIT_EDITOR");
+@result = ($result[0], $tagfile);
+system @result;
+exit ($? >> 8) if $?;
+
+# Create the tag
+# Also using system so that hte user can see the output.
+system("git", "tag", "-a", "-F", $tagfile, split(' ', $ENV{GITTAGFLAGS}), "v$v");
+exit ($? >> 8) if $?;
+
+# Update the version files for the next patch release
+@v = split(/\./, $v);
+if (scalar @v < 3) {
+    push @v, '1';
+} else {
+    ++$v[-1];
+}
+$v = join('.', @v);
+open VERSION, ">", "VERSION" or die("Cannot open VERSION file: $!");
+print VERSION "$v\n";
+close VERSION;
+
+open VERSION, ">", "src/tinycbor-version.h" or die("Cannot open src/tinycbor-version.h: $!");
+print VERSION "#define TINYCBOR_VERSION_MAJOR      ", $v[0], "\n";
+print VERSION "#define TINYCBOR_VERSION_MINOR      ", $v[1], "\n";
+print VERSION "#define TINYCBOR_VERSION_PATCH      ", $v[2], "\n";
+close VERSION;
+
+if (open APPVEYORYML, "<", ".appveyor.yml") {
+    my @contents = map {
+        s/^version:.*/version: $v[0].$v[1].$v[2]-build-{build}/;
+        $_;
+    } <APPVEYORYML>;
+    close APPVEYORYML;
+    open APPVEYORYML, ">", ".appveyor.yml";
+    print APPVEYORYML join('', @contents);
+    close APPVEYORYML;
+}
+
+# Print summary
+print "Tag created and next versions updated.\n";
+print "Don't forget to create the docs.\n" if $v[2] == 1;

lib/cbor/tinycbor/scripts/update-docs.sh

@@ -0,0 +1,52 @@
+#!/bin/sh -ex
+tuple="$TRAVIS_BRANCH${TRAVIS_TAG:+tag:$TRAVIS_TAG},$TRAVIS_PULL_REQUEST"
+case "$tuple" in
+    dev,false|main,false|tag:*)
+        ;;
+    *)
+        exit 0
+        ;;
+esac
+V=`cut -f1-2 -d. <VERSION`
+git fetch origin gh-pages
+
+# Fail if the library sizes file isn't present
+test -r sizes
+
+# Run doxygen (maybe)
+if [ -n "${TRAVIS_TAG-$FORCE_DOCS}" ] && make -s docs 2>/dev/null; then
+    git checkout -b gh-pages FETCH_HEAD
+    if [ -d "$V" ]; then
+        mv "$V" "old-$V"
+    fi
+    mv doc/html "$V"
+    git add -A "$V"
+else
+    git checkout -b gh-pages FETCH_HEAD
+    mkdir -p "$V"
+fi
+
+# Update the symlink for the branch name
+rm -f "./$TRAVIS_BRANCH"
+ln -s "$V" "$TRAVIS_BRANCH"
+git add "./$TRAVIS_BRANCH"
+
+# Update the library sizes file
+# (will fail if the release build failed)
+mkdir -p "library_sizes/$TRAVIS_BRANCH"
+mv sizes "library_sizes/$TRAVIS_BRANCH/$QMAKESPEC"
+(cd "library_sizes/$TRAVIS_BRANCH/";
+ for f in *; do echo "$f:"; cat  "$f" ; done) > "$V/library_sizes.txt"
+git add "library_sizes/$TRAVIS_BRANCH" "$V/library_sizes.txt"
+git diff --cached -U0 "$V/library_sizes.txt"
+
+# Commit everything
+if git commit -m "Update docs for $V (Travis build $TRAVIS_BUILD_NUMBER)
+
+Matching commit $TRAVIS_COMMIT:
+$TRAVIS_COMMIT_MESSAGE"; then
+    # We've made a commit, push it
+    set +x
+    url=`git config --get remote.origin.url | sed -e s,://github,://$GITHUB_AUTH@github,`
+    git push "$url" @:gh-pages
+fi

lib/cbor/tinycbor/src/cbor.dox

@@ -0,0 +1,123 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+/**
+ * \mainpage
+ * The TinyCBOR $(VERSION) library is a small CBOR encoder and decoder library,
+ * optimized for very fast operation with very small footprint. The main encoder
+ * and decoder functions do not allocate memory.
+ *
+ * TinyCBOR is divided into the following groups of functions and structures:
+ *  - \ref CborGlobals
+ *  - \ref CborEncoding
+ *  - \ref CborParsing
+ *  - \ref CborPretty
+ *  - \ref CborToJson
+ */
+
+/**
+ * \file <cbor.h>
+ * The <cbor.h> is the main header in TinyCBOR and defines the constants used by most functions
+ * as well as the structures for encoding (CborEncoder) and decoding (CborValue).
+ *
+ * \sa <cborjson.h>
+ */
+
+/**
+ * \file <cborjson.h>
+ * The <cborjson.h> file contains the routines that are used to convert a CBOR
+ * data stream into JSON.
+ *
+ * \sa <cbor.h>
+ */
+
+/**
+ * \defgroup CborGlobals Global constants
+ * \brief Constants used by all TinyCBOR function groups.
+ */
+
+/**
+ * \addtogroup CborGlobals
+ * @{
+ */
+
+/**
+ * \var size_t CborIndefiniteLength
+ *
+ * This variable is a constant used to indicate that the length of the map or
+ * array is not yet determined. It is used in functions
+ * cbor_encoder_create_map() and cbor_encoder_create_array()
+ */
+
+/**
+ * \enum CborType
+ * The CborType enum contains the types known to TinyCBOR.
+ *
+ * \value CborIntegerType           Type is an integer value, positive, negative or zero
+ * \value CborByteStringType        Type is a string of arbitrary raw bytes
+ * \value CborTextStringType        Type is a text string encoded in UTF-8
+ * \value CborArrayType             Type is a CBOR array
+ * \value CborMapType               Type is a CBOR map (an associative container with key and value pairs)
+ * \value CborTagType               Type is a CBOR tag (a 64-bit integer describing the item that follows, see CborKnownTags)
+ * \value CborSimpleType            Type is one of the CBOR Simple Types
+ * \value CborBooleanType           Type is a boolean (true or false)
+ * \value CborNullType              Type encodes a null
+ * \value CborUndefinedType         Type encodes an undefined value
+ * \value CborHalfFloatType         Type is an IEEE 754 half precision (16-bit) floating point type
+ * \value CborFloatType             Type is an IEEE 754 single precision (32-bit) floating point type
+ * \value CborDoubleType            Type is an IEEE 754 double precision (64-bit) floating point type
+ * \value CborInvalidType           Type is not valid (this value is used to indicate error conditions)
+ */
+
+/**
+ * \enum CborKnownTags
+ * The CborKnownTags enum contains known tags specified in RFC 7049, for use by the application.
+ * TinyCBOR does not usually interpret the meaning of these tags and does not add them to the
+ * output stream, unless specifically instructed to do so in functions for that effect.
+ *
+ * \value CborDateTimeStringTag     Text string contains a date-time encoded in RFC 3339 format, "YYYY-MM-DD hh:mm:ss+zzzz"
+ * \value CborUnixTime_tTag         Number is a Unix time_t quantity, the number of seconds since 1970-01-01 midnight UTC
+ * \value CborPositiveBignumTag     Item is a CBOR byte string encoding a positive integer of arbitrary precision
+ * \value CborNegativeBignumTag     Item is a CBOR byte string encoding a negative integer of arbitrary precision
+ * \value CborDecimalTag            Item is a CBOR array of two integers encoding a fixed-point decimal
+ * \value CborBigfloatTag           Item is a bigfloat
+ * \value CborExpectedBase64urlTag  Item is a CBOR byte string that is expected to be encoded as Base64Url
+ * \value CborExpectedBase64Tag     Item is a CBOR byte string that is expected to be encoded as Base64
+ * \value CborExpectedBase16Tag     Item is a CBOR byte string that is expected to be encoded as Base16 (also known as "hexdump")
+ * \value CborUriTag                Item is a CBOR text string containing a URI (RFC 3986) or IRI (RFC 3987)
+ * \value CborBase64urlTag          Item is a CBOR text string that was encoded as Base64Url
+ * \value CborBase64Tag             Item is a CBOR text string that was encoded as Base64
+ * \value CborRegularExpressionTag  Item is a CBOR text string containing a regular expression
+ * \value CborMimeMessageTag        Item is a CBOR text string containing a MIME message (RFC 2045, 2046, 2047, 2822)
+ * \value CborSignatureTag          Item contains CBOR-encoded data.
+ *                                  This tag is also used as "file magic," marking a file as containing CBOR
+ */
+
+/**
+ * \typedef CborTag
+ * This typedef is an unsigned 64-bit integer. Known CBOR tags can be used from the CborKnownTags enum
+ * but the user application may use other tag values than the ones specified in RFC 7049.
+ */
+
+/** @} */

lib/cbor/tinycbor/src/cbor.h

@@ -0,0 +1,724 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef CBOR_H
+#define CBOR_H
+
+#ifndef assert
+#include <assert.h>
+#endif
+#include <limits.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "tinycbor-version.h"
+
+#define TINYCBOR_VERSION            ((TINYCBOR_VERSION_MAJOR << 16) | (TINYCBOR_VERSION_MINOR << 8) | TINYCBOR_VERSION_PATCH)
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#include <stdbool.h>
+#endif
+
+#ifndef SIZE_MAX
+/* Some systems fail to define SIZE_MAX in <stdint.h>, even though C99 requires it...
+ * Conversion from signed to unsigned is defined in 6.3.1.3 (Signed and unsigned integers) p2,
+ * which says: "the value is converted by repeatedly adding or subtracting one more than the
+ * maximum value that can be represented in the new type until the value is in the range of the
+ * new type."
+ * So -1 gets converted to size_t by adding SIZE_MAX + 1, which results in SIZE_MAX.
+ */
+#  define SIZE_MAX ((size_t)-1)
+#endif
+
+#ifndef CBOR_API
+#  define CBOR_API
+#endif
+#ifndef CBOR_PRIVATE_API
+#  define CBOR_PRIVATE_API
+#endif
+#ifndef CBOR_INLINE_API
+#  if defined(__cplusplus)
+#    define CBOR_INLINE inline
+#    define CBOR_INLINE_API inline
+#  else
+#    define CBOR_INLINE_API static CBOR_INLINE
+#    if defined(_MSC_VER)
+#      define CBOR_INLINE __inline
+#    elif defined(__GNUC__)
+#      define CBOR_INLINE __inline__
+#    elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+#      define CBOR_INLINE inline
+#    else
+#      define CBOR_INLINE
+#    endif
+#  endif
+#endif
+
+typedef enum CborType {
+    CborIntegerType     = 0x00,
+    CborByteStringType  = 0x40,
+    CborTextStringType  = 0x60,
+    CborArrayType       = 0x80,
+    CborMapType         = 0xa0,
+    CborTagType         = 0xc0,
+    CborSimpleType      = 0xe0,
+    CborBooleanType     = 0xf5,
+    CborNullType        = 0xf6,
+    CborUndefinedType   = 0xf7,
+    CborHalfFloatType   = 0xf9,
+    CborFloatType       = 0xfa,
+    CborDoubleType      = 0xfb,
+
+    CborInvalidType     = 0xff              /* equivalent to the break byte, so it will never be used */
+} CborType;
+
+typedef uint64_t CborTag;
+typedef enum CborKnownTags {
+    CborDateTimeStringTag          = 0,
+    CborUnixTime_tTag              = 1,
+    CborPositiveBignumTag          = 2,
+    CborNegativeBignumTag          = 3,
+    CborDecimalTag                 = 4,
+    CborBigfloatTag                = 5,
+    CborCOSE_Encrypt0Tag           = 16,
+    CborCOSE_Mac0Tag               = 17,
+    CborCOSE_Sign1Tag              = 18,
+    CborExpectedBase64urlTag       = 21,
+    CborExpectedBase64Tag          = 22,
+    CborExpectedBase16Tag          = 23,
+    CborEncodedCborTag             = 24,
+    CborUrlTag                     = 32,
+    CborBase64urlTag               = 33,
+    CborBase64Tag                  = 34,
+    CborRegularExpressionTag       = 35,
+    CborMimeMessageTag             = 36,
+    CborCOSE_EncryptTag            = 96,
+    CborCOSE_MacTag                = 97,
+    CborCOSE_SignTag               = 98,
+    CborSignatureTag               = 55799
+} CborKnownTags;
+
+/* #define the constants so we can check with #ifdef */
+#define CborDateTimeStringTag CborDateTimeStringTag
+#define CborUnixTime_tTag CborUnixTime_tTag
+#define CborPositiveBignumTag CborPositiveBignumTag
+#define CborNegativeBignumTag CborNegativeBignumTag
+#define CborDecimalTag CborDecimalTag
+#define CborBigfloatTag CborBigfloatTag
+#define CborCOSE_Encrypt0Tag CborCOSE_Encrypt0Tag
+#define CborCOSE_Mac0Tag CborCOSE_Mac0Tag
+#define CborCOSE_Sign1Tag CborCOSE_Sign1Tag
+#define CborExpectedBase64urlTag CborExpectedBase64urlTag
+#define CborExpectedBase64Tag CborExpectedBase64Tag
+#define CborExpectedBase16Tag CborExpectedBase16Tag
+#define CborEncodedCborTag CborEncodedCborTag
+#define CborUrlTag CborUrlTag
+#define CborBase64urlTag CborBase64urlTag
+#define CborBase64Tag CborBase64Tag
+#define CborRegularExpressionTag CborRegularExpressionTag
+#define CborMimeMessageTag CborMimeMessageTag
+#define CborCOSE_EncryptTag CborCOSE_EncryptTag
+#define CborCOSE_MacTag CborCOSE_MacTag
+#define CborCOSE_SignTag CborCOSE_SignTag
+#define CborSignatureTag CborSignatureTag
+
+/* Error API */
+
+typedef enum CborError {
+    CborNoError = 0,
+
+    /* errors in all modes */
+    CborUnknownError,
+    CborErrorUnknownLength,         /* request for length in array, map, or string with indeterminate length */
+    CborErrorAdvancePastEOF,
+    CborErrorIO,
+
+    /* parser errors streaming errors */
+    CborErrorGarbageAtEnd = 256,
+    CborErrorUnexpectedEOF,
+    CborErrorUnexpectedBreak,
+    CborErrorUnknownType,           /* can only happen in major type 7 */
+    CborErrorIllegalType,           /* type not allowed here */
+    CborErrorIllegalNumber,
+    CborErrorIllegalSimpleType,     /* types of value less than 32 encoded in two bytes */
+    CborErrorNoMoreStringChunks,
+
+    /* parser errors in strict mode parsing only */
+    CborErrorUnknownSimpleType = 512,
+    CborErrorUnknownTag,
+    CborErrorInappropriateTagForType,
+    CborErrorDuplicateObjectKeys,
+    CborErrorInvalidUtf8TextString,
+    CborErrorExcludedType,
+    CborErrorExcludedValue,
+    CborErrorImproperValue,
+    CborErrorOverlongEncoding,
+    CborErrorMapKeyNotString,
+    CborErrorMapNotSorted,
+    CborErrorMapKeysNotUnique,
+
+    /* encoder errors */
+    CborErrorTooManyItems = 768,
+    CborErrorTooFewItems,
+
+    /* internal implementation errors */
+    CborErrorDataTooLarge = 1024,
+    CborErrorNestingTooDeep,
+    CborErrorUnsupportedType,
+    CborErrorUnimplementedValidation,
+
+    /* errors in converting to JSON */
+    CborErrorJsonObjectKeyIsAggregate = 1280,
+    CborErrorJsonObjectKeyNotString,
+    CborErrorJsonNotImplemented,
+
+    CborErrorOutOfMemory = (int) (~0U / 2 + 1),
+    CborErrorInternalError = (int) (~0U / 2)    /* INT_MAX on two's complement machines */
+} CborError;
+
+CBOR_API const char *cbor_error_string(CborError error);
+
+/* Encoder API */
+
+typedef enum CborEncoderAppendType
+{
+    CborEncoderAppendCborData = 0,
+    CborEncoderAppendStringData = 1
+} CborEncoderAppendType;
+
+typedef CborError (*CborEncoderWriteFunction)(void *, const void *, size_t, CborEncoderAppendType);
+
+enum CborEncoderFlags
+{
+    CborIteratorFlag_WriterFunction         = 0x01,
+    CborIteratorFlag_ContainerIsMap_        = 0x20
+};
+
+struct CborEncoder
+{
+    union {
+        uint8_t *ptr;
+        ptrdiff_t bytes_needed;
+        CborEncoderWriteFunction writer;
+    } data;
+    uint8_t *end;
+    size_t remaining;
+    int flags;
+};
+typedef struct CborEncoder CborEncoder;
+
+static const size_t CborIndefiniteLength = SIZE_MAX;
+
+#ifndef CBOR_NO_ENCODER_API
+CBOR_API void cbor_encoder_init(CborEncoder *encoder, uint8_t *buffer, size_t size, int flags);
+CBOR_API void cbor_encoder_init_writer(CborEncoder *encoder, CborEncoderWriteFunction writer, void *);
+CBOR_API CborError cbor_encode_uint(CborEncoder *encoder, uint64_t value);
+CBOR_API CborError cbor_encode_int(CborEncoder *encoder, int64_t value);
+CBOR_API CborError cbor_encode_negative_int(CborEncoder *encoder, uint64_t absolute_value);
+CBOR_API CborError cbor_encode_simple_value(CborEncoder *encoder, uint8_t value);
+CBOR_API CborError cbor_encode_tag(CborEncoder *encoder, CborTag tag);
+CBOR_API CborError cbor_encode_text_string(CborEncoder *encoder, const char *string, size_t length);
+CBOR_INLINE_API CborError cbor_encode_text_stringz(CborEncoder *encoder, const char *string)
+{ return cbor_encode_text_string(encoder, string, strlen(string)); }
+CBOR_API CborError cbor_encode_byte_string(CborEncoder *encoder, const uint8_t *string, size_t length);
+CBOR_API CborError cbor_encode_floating_point(CborEncoder *encoder, CborType fpType, const void *value);
+
+CBOR_INLINE_API CborError cbor_encode_boolean(CborEncoder *encoder, bool value)
+{ return cbor_encode_simple_value(encoder, (int)value - 1 + (CborBooleanType & 0x1f)); }
+CBOR_INLINE_API CborError cbor_encode_null(CborEncoder *encoder)
+{ return cbor_encode_simple_value(encoder, CborNullType & 0x1f); }
+CBOR_INLINE_API CborError cbor_encode_undefined(CborEncoder *encoder)
+{ return cbor_encode_simple_value(encoder, CborUndefinedType & 0x1f); }
+
+CBOR_INLINE_API CborError cbor_encode_half_float(CborEncoder *encoder, const void *value)
+{ return cbor_encode_floating_point(encoder, CborHalfFloatType, value); }
+CBOR_API CborError cbor_encode_float_as_half_float(CborEncoder *encoder, float value);
+CBOR_INLINE_API CborError cbor_encode_float(CborEncoder *encoder, float value)
+{ return cbor_encode_floating_point(encoder, CborFloatType, &value); }
+CBOR_INLINE_API CborError cbor_encode_double(CborEncoder *encoder, double value)
+{ return cbor_encode_floating_point(encoder, CborDoubleType, &value); }
+
+CBOR_API CborError cbor_encoder_create_array(CborEncoder *parentEncoder, CborEncoder *arrayEncoder, size_t length);
+CBOR_API CborError cbor_encoder_create_map(CborEncoder *parentEncoder, CborEncoder *mapEncoder, size_t length);
+CBOR_API CborError cbor_encoder_close_container(CborEncoder *parentEncoder, const CborEncoder *containerEncoder);
+CBOR_API CborError cbor_encoder_close_container_checked(CborEncoder *parentEncoder, const CborEncoder *containerEncoder);
+
+CBOR_INLINE_API uint8_t *_cbor_encoder_get_buffer_pointer(const CborEncoder *encoder)
+{
+    return encoder->data.ptr;
+}
+
+CBOR_INLINE_API size_t cbor_encoder_get_buffer_size(const CborEncoder *encoder, const uint8_t *buffer)
+{
+    return (size_t)(encoder->data.ptr - buffer);
+}
+
+CBOR_INLINE_API size_t cbor_encoder_get_extra_bytes_needed(const CborEncoder *encoder)
+{
+    return encoder->end ? 0 : (size_t)encoder->data.bytes_needed;
+}
+#endif /* CBOR_NO_ENCODER_API */
+
+/* Parser API */
+
+enum CborParserGlobalFlags
+{
+    CborParserFlag_ExternalSource           = 0x01
+};
+
+enum CborParserIteratorFlags
+{
+    /* used for all types, but not during string chunk iteration
+     * (values are static-asserted, don't change) */
+    CborIteratorFlag_IntegerValueIs64Bit    = 0x01,
+    CborIteratorFlag_IntegerValueTooLarge   = 0x02,
+
+    /* used only for CborIntegerType */
+    CborIteratorFlag_NegativeInteger        = 0x04,
+
+    /* used only during string iteration */
+    CborIteratorFlag_BeforeFirstStringChunk = 0x04,
+    CborIteratorFlag_IteratingStringChunks  = 0x08,
+
+    /* used for arrays, maps and strings, including during chunk iteration */
+    CborIteratorFlag_UnknownLength          = 0x10,
+
+    /* used for maps, but must be kept for all types
+     * (ContainerIsMap value must be CborMapType - CborArrayType) */
+    CborIteratorFlag_ContainerIsMap         = 0x20,
+    CborIteratorFlag_NextIsMapKey           = 0x40
+};
+
+struct CborValue;
+struct CborParserOperations
+{
+    bool (*can_read_bytes)(void *token, size_t len);
+    void *(*read_bytes)(void *token, void *dst, size_t offset, size_t len);
+    void (*advance_bytes)(void *token, size_t len);
+    CborError (*transfer_string)(void *token, const void **userptr, size_t offset, size_t len);
+};
+
+struct CborParser
+{
+    union {
+        const uint8_t *end;
+        const struct CborParserOperations *ops;
+    } source;
+    enum CborParserGlobalFlags flags;
+};
+typedef struct CborParser CborParser;
+
+struct CborValue
+{
+    const CborParser *parser;
+    union {
+        const uint8_t *ptr;
+        void *token;
+    } source;
+    uint32_t remaining;
+    uint16_t extra;
+    uint8_t type;
+    uint8_t flags;
+};
+typedef struct CborValue CborValue;
+
+#ifndef CBOR_NO_PARSER_API
+CBOR_API CborError cbor_parser_init(const uint8_t *buffer, size_t size, uint32_t flags, CborParser *parser, CborValue *it);
+CBOR_API CborError cbor_parser_init_reader(const struct CborParserOperations *ops, CborParser *parser, CborValue *it, void *token);
+
+CBOR_API CborError cbor_value_validate_basic(const CborValue *it);
+
+CBOR_INLINE_API bool cbor_value_at_end(const CborValue *it)
+{ return it->remaining == 0; }
+CBOR_INLINE_API const uint8_t *cbor_value_get_next_byte(const CborValue *it)
+{ return it->source.ptr; }
+CBOR_API CborError cbor_value_reparse(CborValue *it);
+CBOR_API CborError cbor_value_advance_fixed(CborValue *it);
+CBOR_API CborError cbor_value_advance(CborValue *it);
+CBOR_INLINE_API bool cbor_value_is_container(const CborValue *it)
+{ return it->type == CborArrayType || it->type == CborMapType; }
+CBOR_API CborError cbor_value_enter_container(const CborValue *it, CborValue *recursed);
+CBOR_API CborError cbor_value_leave_container(CborValue *it, const CborValue *recursed);
+
+CBOR_PRIVATE_API uint64_t _cbor_value_decode_int64_internal(const CborValue *value);
+CBOR_INLINE_API uint64_t _cbor_value_extract_int64_helper(const CborValue *value)
+{
+    return value->flags & CborIteratorFlag_IntegerValueTooLarge ?
+                _cbor_value_decode_int64_internal(value) : value->extra;
+}
+
+CBOR_INLINE_API bool cbor_value_is_valid(const CborValue *value)
+{ return value && value->type != CborInvalidType; }
+CBOR_INLINE_API CborType cbor_value_get_type(const CborValue *value)
+{ return (CborType)value->type; }
+
+/* Null & undefined type */
+CBOR_INLINE_API bool cbor_value_is_null(const CborValue *value)
+{ return value->type == CborNullType; }
+CBOR_INLINE_API bool cbor_value_is_undefined(const CborValue *value)
+{ return value->type == CborUndefinedType; }
+
+/* Booleans */
+CBOR_INLINE_API bool cbor_value_is_boolean(const CborValue *value)
+{ return value->type == CborBooleanType; }
+CBOR_INLINE_API CborError cbor_value_get_boolean(const CborValue *value, bool *result)
+{
+    assert(cbor_value_is_boolean(value));
+    *result = !!value->extra;
+    return CborNoError;
+}
+
+/* Simple types */
+CBOR_INLINE_API bool cbor_value_is_simple_type(const CborValue *value)
+{ return value->type == CborSimpleType; }
+CBOR_INLINE_API CborError cbor_value_get_simple_type(const CborValue *value, uint8_t *result)
+{
+    assert(cbor_value_is_simple_type(value));
+    *result = (uint8_t)value->extra;
+    return CborNoError;
+}
+
+/* Integers */
+CBOR_INLINE_API bool cbor_value_is_integer(const CborValue *value)
+{ return value->type == CborIntegerType; }
+CBOR_INLINE_API bool cbor_value_is_unsigned_integer(const CborValue *value)
+{ return cbor_value_is_integer(value) && (value->flags & CborIteratorFlag_NegativeInteger) == 0; }
+CBOR_INLINE_API bool cbor_value_is_negative_integer(const CborValue *value)
+{ return cbor_value_is_integer(value) && (value->flags & CborIteratorFlag_NegativeInteger); }
+
+CBOR_INLINE_API CborError cbor_value_get_raw_integer(const CborValue *value, uint64_t *result)
+{
+    assert(cbor_value_is_integer(value));
+    *result = _cbor_value_extract_int64_helper(value);
+    return CborNoError;
+}
+
+CBOR_INLINE_API CborError cbor_value_get_uint64(const CborValue *value, uint64_t *result)
+{
+    assert(cbor_value_is_unsigned_integer(value));
+    *result = _cbor_value_extract_int64_helper(value);
+    return CborNoError;
+}
+
+CBOR_INLINE_API CborError cbor_value_get_int64(const CborValue *value, int64_t *result)
+{
+    assert(cbor_value_is_integer(value));
+    *result = (int64_t) _cbor_value_extract_int64_helper(value);
+    if (value->flags & CborIteratorFlag_NegativeInteger)
+        *result = -*result - 1;
+    return CborNoError;
+}
+
+CBOR_INLINE_API CborError cbor_value_get_int(const CborValue *value, int *result)
+{
+    assert(cbor_value_is_integer(value));
+    *result = (int) _cbor_value_extract_int64_helper(value);
+    if (value->flags & CborIteratorFlag_NegativeInteger)
+        *result = -*result - 1;
+    return CborNoError;
+}
+
+CBOR_API CborError cbor_value_get_int64_checked(const CborValue *value, int64_t *result);
+CBOR_API CborError cbor_value_get_int_checked(const CborValue *value, int *result);
+
+CBOR_INLINE_API bool cbor_value_is_length_known(const CborValue *value)
+{ return (value->flags & CborIteratorFlag_UnknownLength) == 0; }
+
+/* Tags */
+CBOR_INLINE_API bool cbor_value_is_tag(const CborValue *value)
+{ return value->type == CborTagType; }
+CBOR_INLINE_API CborError cbor_value_get_tag(const CborValue *value, CborTag *result)
+{
+    assert(cbor_value_is_tag(value));
+    *result = _cbor_value_extract_int64_helper(value);
+    return CborNoError;
+}
+CBOR_API CborError cbor_value_skip_tag(CborValue *it);
+
+/* Strings */
+CBOR_INLINE_API bool cbor_value_is_byte_string(const CborValue *value)
+{ return value->type == CborByteStringType; }
+CBOR_INLINE_API bool cbor_value_is_text_string(const CborValue *value)
+{ return value->type == CborTextStringType; }
+
+CBOR_INLINE_API CborError cbor_value_get_string_length(const CborValue *value, size_t *length)
+{
+    uint64_t v;
+    assert(cbor_value_is_byte_string(value) || cbor_value_is_text_string(value));
+    if (!cbor_value_is_length_known(value))
+        return CborErrorUnknownLength;
+    v = _cbor_value_extract_int64_helper(value);
+    *length = (size_t)v;
+    if (*length != v)
+        return CborErrorDataTooLarge;
+    return CborNoError;
+}
+
+CBOR_PRIVATE_API CborError _cbor_value_copy_string(const CborValue *value, void *buffer,
+                                                   size_t *buflen, CborValue *next);
+CBOR_PRIVATE_API CborError _cbor_value_dup_string(const CborValue *value, void **buffer,
+                                                  size_t *buflen, CborValue *next);
+
+CBOR_API CborError cbor_value_calculate_string_length(const CborValue *value, size_t *length);
+
+CBOR_INLINE_API CborError cbor_value_copy_text_string(const CborValue *value, char *buffer,
+                                                      size_t *buflen, CborValue *next)
+{
+    assert(cbor_value_is_text_string(value));
+    return _cbor_value_copy_string(value, buffer, buflen, next);
+}
+CBOR_INLINE_API CborError cbor_value_copy_byte_string(const CborValue *value, uint8_t *buffer,
+                                                      size_t *buflen, CborValue *next)
+{
+    assert(cbor_value_is_byte_string(value));
+    return _cbor_value_copy_string(value, buffer, buflen, next);
+}
+
+CBOR_INLINE_API CborError cbor_value_dup_text_string(const CborValue *value, char **buffer,
+                                                     size_t *buflen, CborValue *next)
+{
+    assert(cbor_value_is_text_string(value));
+    return _cbor_value_dup_string(value, (void **)buffer, buflen, next);
+}
+CBOR_INLINE_API CborError cbor_value_dup_byte_string(const CborValue *value, uint8_t **buffer,
+                                                     size_t *buflen, CborValue *next)
+{
+    assert(cbor_value_is_byte_string(value));
+    return _cbor_value_dup_string(value, (void **)buffer, buflen, next);
+}
+
+CBOR_PRIVATE_API CborError _cbor_value_get_string_chunk_size(const CborValue *value, size_t *len);
+CBOR_INLINE_API CborError cbor_value_get_string_chunk_size(const CborValue *value, size_t *len)
+{
+    assert(value->flags & CborIteratorFlag_IteratingStringChunks);
+    return _cbor_value_get_string_chunk_size(value, len);
+}
+
+CBOR_INLINE_API bool cbor_value_string_iteration_at_end(const CborValue *value)
+{
+    size_t dummy;
+    return cbor_value_get_string_chunk_size(value, &dummy) == CborErrorNoMoreStringChunks;
+}
+
+CBOR_PRIVATE_API CborError _cbor_value_begin_string_iteration(CborValue *value);
+CBOR_INLINE_API CborError cbor_value_begin_string_iteration(CborValue *value)
+{
+    assert(cbor_value_is_text_string(value) || cbor_value_is_byte_string(value));
+    assert(!(value->flags & CborIteratorFlag_IteratingStringChunks));
+    return _cbor_value_begin_string_iteration(value);
+}
+
+CBOR_PRIVATE_API CborError _cbor_value_finish_string_iteration(CborValue *value);
+CBOR_INLINE_API CborError cbor_value_finish_string_iteration(CborValue *value)
+{
+    assert(cbor_value_string_iteration_at_end(value));
+    return _cbor_value_finish_string_iteration(value);
+}
+
+CBOR_PRIVATE_API CborError _cbor_value_get_string_chunk(const CborValue *value, const void **bufferptr,
+                                                        size_t *len, CborValue *next);
+CBOR_INLINE_API CborError cbor_value_get_text_string_chunk(const CborValue *value, const char **bufferptr,
+                                                           size_t *len, CborValue *next)
+{
+    assert(cbor_value_is_text_string(value));
+    return _cbor_value_get_string_chunk(value, (const void **)bufferptr, len, next);
+}
+CBOR_INLINE_API CborError cbor_value_get_byte_string_chunk(const CborValue *value, const uint8_t **bufferptr,
+                                                           size_t *len, CborValue *next)
+{
+    assert(cbor_value_is_byte_string(value));
+    return _cbor_value_get_string_chunk(value, (const void **)bufferptr, len, next);
+}
+
+CBOR_API CborError cbor_value_text_string_equals(const CborValue *value, const char *string, bool *result);
+
+/* Maps and arrays */
+CBOR_INLINE_API bool cbor_value_is_array(const CborValue *value)
+{ return value->type == CborArrayType; }
+CBOR_INLINE_API bool cbor_value_is_map(const CborValue *value)
+{ return value->type == CborMapType; }
+
+CBOR_INLINE_API CborError cbor_value_get_array_length(const CborValue *value, size_t *length)
+{
+    uint64_t v;
+    assert(cbor_value_is_array(value));
+    if (!cbor_value_is_length_known(value))
+        return CborErrorUnknownLength;
+    v = _cbor_value_extract_int64_helper(value);
+    *length = (size_t)v;
+    if (*length != v)
+        return CborErrorDataTooLarge;
+    return CborNoError;
+}
+
+CBOR_INLINE_API CborError cbor_value_get_map_length(const CborValue *value, size_t *length)
+{
+    uint64_t v;
+    assert(cbor_value_is_map(value));
+    if (!cbor_value_is_length_known(value))
+        return CborErrorUnknownLength;
+    v = _cbor_value_extract_int64_helper(value);
+    *length = (size_t)v;
+    if (*length != v)
+        return CborErrorDataTooLarge;
+    return CborNoError;
+}
+
+CBOR_API CborError cbor_value_map_find_value(const CborValue *map, const char *string, CborValue *element);
+
+/* Floating point */
+CBOR_INLINE_API bool cbor_value_is_half_float(const CborValue *value)
+{ return value->type == CborHalfFloatType; }
+CBOR_API CborError cbor_value_get_half_float_as_float(const CborValue *value, float *result);
+CBOR_INLINE_API CborError cbor_value_get_half_float(const CborValue *value, void *result)
+{
+    assert(cbor_value_is_half_float(value));
+    assert((value->flags & CborIteratorFlag_IntegerValueTooLarge) == 0);
+
+    /* size has already been computed */
+    memcpy(result, &value->extra, sizeof(value->extra));
+    return CborNoError;
+}
+
+CBOR_INLINE_API bool cbor_value_is_float(const CborValue *value)
+{ return value->type == CborFloatType; }
+CBOR_INLINE_API CborError cbor_value_get_float(const CborValue *value, float *result)
+{
+    uint32_t data;
+    assert(cbor_value_is_float(value));
+    assert(value->flags & CborIteratorFlag_IntegerValueTooLarge);
+    data = (uint32_t)_cbor_value_decode_int64_internal(value);
+    memcpy(result, &data, sizeof(*result));
+    return CborNoError;
+}
+
+CBOR_INLINE_API bool cbor_value_is_double(const CborValue *value)
+{ return value->type == CborDoubleType; }
+CBOR_INLINE_API CborError cbor_value_get_double(const CborValue *value, double *result)
+{
+    uint64_t data;
+    assert(cbor_value_is_double(value));
+    assert(value->flags & CborIteratorFlag_IntegerValueTooLarge);
+    data = _cbor_value_decode_int64_internal(value);
+    memcpy(result, &data, sizeof(*result));
+    return CborNoError;
+}
+
+/* Validation API */
+#ifndef CBOR_NO_VALIDATION_API
+
+enum CborValidationFlags {
+    /* Bit mapping:
+     *  bits 0-7 (8 bits):      canonical format
+     *  bits 8-11 (4 bits):     canonical format & strict mode
+     *  bits 12-20 (8 bits):    strict mode
+     *  bits 21-31 (10 bits):   other
+     */
+
+    CborValidateShortestIntegrals           = 0x0001,
+    CborValidateShortestFloatingPoint       = 0x0002,
+    CborValidateShortestNumbers             = CborValidateShortestIntegrals | CborValidateShortestFloatingPoint,
+    CborValidateNoIndeterminateLength       = 0x0100,
+    CborValidateMapIsSorted                 = 0x0200 | CborValidateNoIndeterminateLength,
+
+    CborValidateCanonicalFormat             = 0x0fff,
+
+    CborValidateMapKeysAreUnique            = 0x1000 | CborValidateMapIsSorted,
+    CborValidateTagUse                      = 0x2000,
+    CborValidateUtf8                        = 0x4000,
+
+    CborValidateStrictMode                  = 0xfff00,
+
+    CborValidateMapKeysAreString            = 0x100000,
+    CborValidateNoUndefined                 = 0x200000,
+    CborValidateNoTags                      = 0x400000,
+    CborValidateFiniteFloatingPoint         = 0x800000,
+    /* unused                               = 0x1000000, */
+    /* unused                               = 0x2000000, */
+
+    CborValidateNoUnknownSimpleTypesSA      = 0x4000000,
+    CborValidateNoUnknownSimpleTypes        = 0x8000000 | CborValidateNoUnknownSimpleTypesSA,
+    CborValidateNoUnknownTagsSA             = 0x10000000,
+    CborValidateNoUnknownTagsSR             = 0x20000000 | CborValidateNoUnknownTagsSA,
+    CborValidateNoUnknownTags               = 0x40000000 | CborValidateNoUnknownTagsSR,
+
+    CborValidateCompleteData                = (int)0x80000000,
+
+    CborValidateStrictest                   = (int)~0U,
+    CborValidateBasic                       = 0
+};
+
+CBOR_API CborError cbor_value_validate(const CborValue *it, uint32_t flags);
+#endif /* CBOR_NO_VALIDATION_API */
+
+/* Human-readable (dump) API */
+#ifndef CBOR_NO_PRETTY_API
+
+enum CborPrettyFlags {
+    CborPrettyNumericEncodingIndicators     = 0x01,
+    CborPrettyTextualEncodingIndicators     = 0,
+
+    CborPrettyIndicateIndeterminateLength   = 0x02,
+    CborPrettyIndicateIndetermineLength     = CborPrettyIndicateIndeterminateLength, /* deprecated */
+    CborPrettyIndicateOverlongNumbers       = 0x04,
+
+    CborPrettyShowStringFragments           = 0x100,
+    CborPrettyMergeStringFragments          = 0,
+
+    CborPrettyDefaultFlags          = CborPrettyIndicateIndeterminateLength
+};
+
+typedef CborError (*CborStreamFunction)(void *token, const char *fmt, ...)
+#ifdef __GNUC__
+    __attribute__((__format__(printf, 2, 3)))
+#endif
+;
+
+CBOR_API CborError cbor_value_to_pretty_stream(CborStreamFunction streamFunction, void *token, CborValue *value, int flags);
+
+/* The following API requires a hosted C implementation (uses FILE*) */
+#if !defined(__STDC_HOSTED__) || __STDC_HOSTED__-0 == 1
+CBOR_API CborError cbor_value_to_pretty_advance_flags(FILE *out, CborValue *value, int flags);
+CBOR_API CborError cbor_value_to_pretty_advance(FILE *out, CborValue *value);
+CBOR_INLINE_API CborError cbor_value_to_pretty(FILE *out, const CborValue *value)
+{
+    CborValue copy = *value;
+    return cbor_value_to_pretty_advance_flags(out, &copy, CborPrettyDefaultFlags);
+}
+#endif /* __STDC_HOSTED__ check */
+
+#endif /* CBOR_NO_PRETTY_API */
+
+#endif /* CBOR_NO_PARSER_API */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CBOR_H */
+

lib/cbor/tinycbor/src/cborencoder.c

@@ -0,0 +1,689 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef _BSD_SOURCE
+#define _BSD_SOURCE 1
+#endif
+#ifndef _DEFAULT_SOURCE
+#define _DEFAULT_SOURCE 1
+#endif
+#ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+#endif
+
+#include "cbor.h"
+#include "cborinternal_p.h"
+#include "compilersupport_p.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * \defgroup CborEncoding Encoding to CBOR
+ * \brief Group of functions used to encode data to CBOR.
+ *
+ * CborEncoder is used to encode data into a CBOR stream. The outermost
+ * CborEncoder is initialized by calling cbor_encoder_init(), with the buffer
+ * where the CBOR stream will be stored. The outermost CborEncoder is usually
+ * used to encode exactly one item, most often an array or map. It is possible
+ * to encode more than one item, but care must then be taken on the decoder
+ * side to ensure the state is reset after each item was decoded.
+ *
+ * Nested CborEncoder objects are created using cbor_encoder_create_array() and
+ * cbor_encoder_create_map(), later closed with cbor_encoder_close_container()
+ * or cbor_encoder_close_container_checked(). The pairs of creation and closing
+ * must be exactly matched and their parameters are always the same.
+ *
+ * CborEncoder writes directly to the user-supplied buffer, without extra
+ * buffering. CborEncoder does not allocate memory and CborEncoder objects are
+ * usually created on the stack of the encoding functions.
+ *
+ * The example below initializes a CborEncoder object with a buffer and encodes
+ * a single integer.
+ *
+ * \code
+ *      uint8_t buf[16];
+ *      CborEncoder encoder;
+ *      cbor_encoder_init(&encoder, buf, sizeof(buf), 0);
+ *      cbor_encode_int(&encoder, some_value);
+ * \endcode
+ *
+ * As explained before, usually the outermost CborEncoder object is used to add
+ * one array or map, which in turn contains multiple elements. The example
+ * below creates a CBOR map with one element: a key "foo" and a boolean value.
+ *
+ * \code
+ *      uint8_t buf[16];
+ *      CborEncoder encoder, mapEncoder;
+ *      cbor_encoder_init(&encoder, buf, sizeof(buf), 0);
+ *      cbor_encoder_create_map(&encoder, &mapEncoder, 1);
+ *      cbor_encode_text_stringz(&mapEncoder, "foo");
+ *      cbor_encode_boolean(&mapEncoder, some_value);
+ *      cbor_encoder_close_container(&encoder, &mapEncoder);
+ * \endcode
+ *
+ * <h3 class="groupheader">Error checking and buffer size</h3>
+ *
+ * All functions operating on CborEncoder return a condition of type CborError.
+ * If the encoding was successful, they return CborNoError. Some functions do
+ * extra checking on the input provided and may return some other error
+ * conditions (for example, cbor_encode_simple_value() checks that the type is
+ * of the correct type).
+ *
+ * In addition, all functions check whether the buffer has enough bytes to
+ * encode the item being appended. If that is not possible, they return
+ * CborErrorOutOfMemory.
+ *
+ * It is possible to continue with the encoding of data past the first function
+ * that returns CborErrorOutOfMemory. CborEncoder functions will not overrun
+ * the buffer, but will instead count how many more bytes are needed to
+ * complete the encoding. At the end, you can obtain that count by calling
+ * cbor_encoder_get_extra_bytes_needed().
+ *
+ * \section1 Finalizing the encoding
+ *
+ * Once all items have been appended and the containers have all been properly
+ * closed, the user-supplied buffer will contain the CBOR stream and may be
+ * immediately used. To obtain the size of the buffer, call
+ * cbor_encoder_get_buffer_size() with the original buffer pointer.
+ *
+ * The example below illustrates how one can encode an item with error checking
+ * and then pass on the buffer for network sending.
+ *
+ * \code
+ *      uint8_t buf[16];
+ *      CborError err;
+ *      CborEncoder encoder, mapEncoder;
+ *      cbor_encoder_init(&encoder, buf, sizeof(buf), 0);
+ *      err = cbor_encoder_create_map(&encoder, &mapEncoder, 1);
+ *      if (err)
+ *          return err;
+ *      err = cbor_encode_text_stringz(&mapEncoder, "foo");
+ *      if (err)
+ *          return err;
+ *      err = cbor_encode_boolean(&mapEncoder, some_value);
+ *      if (err)
+ *          return err;
+ *      err = cbor_encoder_close_container_checked(&encoder, &mapEncoder);
+ *      if (err)
+ *          return err;
+ *
+ *      size_t len = cbor_encoder_get_buffer_size(&encoder, buf);
+ *      send_payload(buf, len);
+ *      return CborNoError;
+ * \endcode
+ *
+ * Finally, the example below expands on the one above and also
+ * deals with dynamically growing the buffer if the initial allocation wasn't
+ * big enough. Note the two places where the error checking was replaced with
+ * an cbor_assertion, showing where the author assumes no error can occur.
+ *
+ * \code
+ * uint8_t *encode_string_array(const char **strings, int n, size_t *bufsize)
+ * {
+ *     CborError err;
+ *     CborEncoder encoder, arrayEncoder;
+ *     size_t size = 256;
+ *     uint8_t *buf = NULL;
+ *
+ *     while (1) {
+ *         int i;
+ *         size_t more_bytes;
+ *         uint8_t *nbuf = realloc(buf, size);
+ *         if (nbuf == NULL)
+ *             goto error;
+ *         buf = nbuf;
+ *
+ *         cbor_encoder_init(&encoder, buf, size, 0);
+ *         err = cbor_encoder_create_array(&encoder, &arrayEncoder, n);
+ *         cbor_assert(!err);         // can't fail, the buffer is always big enough
+ *
+ *         for (i = 0; i < n; ++i) {
+ *             err = cbor_encode_text_stringz(&arrayEncoder, strings[i]);
+ *             if (err && err != CborErrorOutOfMemory)
+ *                 goto error;
+ *         }
+ *
+ *         err = cbor_encoder_close_container_checked(&encoder, &arrayEncoder);
+ *         cbor_assert(!err);         // shouldn't fail!
+ *
+ *         more_bytes = cbor_encoder_get_extra_bytes_needed(encoder);
+ *         if (more_size) {
+ *             // buffer wasn't big enough, try again
+ *             size += more_bytes;
+ *             continue;
+ *         }
+ *
+ *         *bufsize = cbor_encoder_get_buffer_size(encoder, buf);
+ *         return buf;
+ *     }
+ *  error:
+ *     free(buf);
+ *     return NULL;
+ *  }
+ * \endcode
+ */
+
+/**
+ * \addtogroup CborEncoding
+ * @{
+ */
+
+/**
+ * \struct CborEncoder
+ * Structure used to encode to CBOR.
+ */
+
+/**
+ * Initializes a CborEncoder structure \a encoder by pointing it to buffer \a
+ * buffer of size \a size. The \a flags field is currently unused and must be
+ * zero.
+ */
+void cbor_encoder_init(CborEncoder *encoder, uint8_t *buffer, size_t size, int flags)
+{
+    encoder->data.ptr = buffer;
+    encoder->end = buffer + size;
+    encoder->remaining = 2;
+    encoder->flags = flags;
+}
+
+void cbor_encoder_init_writer(CborEncoder *encoder, CborEncoderWriteFunction writer, void *token)
+{
+#ifdef CBOR_ENCODER_WRITE_FUNCTION
+    (void) writer;
+#else
+    encoder->data.writer = writer;
+#endif
+    encoder->end = (uint8_t *)token;
+    encoder->remaining = 2;
+    encoder->flags = CborIteratorFlag_WriterFunction;
+}
+
+static inline void put16(void *where, uint16_t v)
+{
+    uint16_t v_be = cbor_htons(v);
+    memcpy(where, &v_be, sizeof(v_be));
+}
+
+/* Note: Since this is currently only used in situations where OOM is the only
+ * valid error, we KNOW this to be true.  Thus, this function now returns just 'true',
+ * but if in the future, any function starts returning a non-OOM error, this will need
+ * to be changed to the test.  At the moment, this is done to prevent more branches
+ * being created in the tinycbor output */
+static inline bool isOomError(CborError err)
+{
+    if (CBOR_ENCODER_WRITER_CONTROL < 0)
+        return true;
+
+    /* CborErrorOutOfMemory is the only negative error code, intentionally
+     * so we can write the test like this */
+    return (int)err < 0;
+}
+
+static inline void put32(void *where, uint32_t v)
+{
+    uint32_t v_be = cbor_htonl(v);
+    memcpy(where, &v_be, sizeof(v_be));
+}
+
+static inline void put64(void *where, uint64_t v)
+{
+    uint64_t v_be = cbor_htonll(v);
+    memcpy(where, &v_be, sizeof(v_be));
+}
+
+static inline bool would_overflow(CborEncoder *encoder, size_t len)
+{
+    ptrdiff_t remaining = (ptrdiff_t)encoder->end;
+    remaining -= remaining ? (ptrdiff_t)encoder->data.ptr : encoder->data.bytes_needed;
+    remaining -= (ptrdiff_t)len;
+    return unlikely(remaining < 0);
+}
+
+static inline void advance_ptr(CborEncoder *encoder, size_t n)
+{
+    if (encoder->end)
+        encoder->data.ptr += n;
+    else
+        encoder->data.bytes_needed += n;
+}
+
+static inline CborError append_to_buffer(CborEncoder *encoder, const void *data, size_t len,
+                                         CborEncoderAppendType appendType)
+{
+    if (CBOR_ENCODER_WRITER_CONTROL >= 0) {
+        if (encoder->flags & CborIteratorFlag_WriterFunction || CBOR_ENCODER_WRITER_CONTROL != 0) {
+#  ifdef CBOR_ENCODER_WRITE_FUNCTION
+            return CBOR_ENCODER_WRITE_FUNCTION(encoder->end, data, len, appendType);
+#  else
+            return encoder->data.writer(encoder->end, data, len, appendType);
+#  endif
+        }
+    }
+
+#if CBOR_ENCODER_WRITER_CONTROL <= 0
+    if (would_overflow(encoder, len)) {
+        if (encoder->end != NULL) {
+            len -= encoder->end - encoder->data.ptr;
+            encoder->end = NULL;
+            encoder->data.bytes_needed = 0;
+        }
+
+        advance_ptr(encoder, len);
+        return CborErrorOutOfMemory;
+    }
+
+    memcpy(encoder->data.ptr, data, len);
+    encoder->data.ptr += len;
+#endif
+    return CborNoError;
+}
+
+static inline CborError append_byte_to_buffer(CborEncoder *encoder, uint8_t byte)
+{
+    return append_to_buffer(encoder, &byte, 1, CborEncoderAppendCborData);
+}
+
+static inline CborError encode_number_no_update(CborEncoder *encoder, uint64_t ui, uint8_t shiftedMajorType)
+{
+    /* Little-endian would have been so much more convenient here:
+     * We could just write at the beginning of buf but append_to_buffer
+     * only the necessary bytes.
+     * Since it has to be big endian, do it the other way around:
+     * write from the end. */
+    uint64_t buf[2];
+    uint8_t *const bufend = (uint8_t *)buf + sizeof(buf);
+    uint8_t *bufstart = bufend - 1;
+    put64(buf + 1, ui);     /* we probably have a bunch of zeros in the beginning */
+
+    if (ui < Value8Bit) {
+        *bufstart += shiftedMajorType;
+    } else {
+        uint8_t more = 0;
+        if (ui > 0xffU)
+            ++more;
+        if (ui > 0xffffU)
+            ++more;
+        if (ui > 0xffffffffU)
+            ++more;
+        bufstart -= (size_t)1 << more;
+        *bufstart = shiftedMajorType + Value8Bit + more;
+    }
+
+    return append_to_buffer(encoder, bufstart, bufend - bufstart, CborEncoderAppendCborData);
+}
+
+static inline void saturated_decrement(CborEncoder *encoder)
+{
+    if (encoder->remaining)
+        --encoder->remaining;
+}
+
+static inline CborError encode_number(CborEncoder *encoder, uint64_t ui, uint8_t shiftedMajorType)
+{
+    saturated_decrement(encoder);
+    return encode_number_no_update(encoder, ui, shiftedMajorType);
+}
+
+/**
+ * Appends the unsigned 64-bit integer \a value to the CBOR stream provided by
+ * \a encoder.
+ *
+ * \sa cbor_encode_negative_int, cbor_encode_int
+ */
+CborError cbor_encode_uint(CborEncoder *encoder, uint64_t value)
+{
+    return encode_number(encoder, value, UnsignedIntegerType << MajorTypeShift);
+}
+
+/**
+ * Appends the negative 64-bit integer whose absolute value is \a
+ * absolute_value to the CBOR stream provided by \a encoder.
+ *
+ * If the value \a absolute_value is zero, this function encodes -2^64.
+ *
+ * \sa cbor_encode_uint, cbor_encode_int
+ */
+CborError cbor_encode_negative_int(CborEncoder *encoder, uint64_t absolute_value)
+{
+    return encode_number(encoder, absolute_value - 1, NegativeIntegerType << MajorTypeShift);
+}
+
+/**
+ * Appends the signed 64-bit integer \a value to the CBOR stream provided by
+ * \a encoder.
+ *
+ * \sa cbor_encode_negative_int, cbor_encode_uint
+ */
+CborError cbor_encode_int(CborEncoder *encoder, int64_t value)
+{
+    /* adapted from code in RFC 7049 appendix C (pseudocode) */
+    uint64_t ui = value >> 63;              /* extend sign to whole length */
+    uint8_t majorType = ui & 0x20;          /* extract major type */
+    ui ^= value;                            /* complement negatives */
+    return encode_number(encoder, ui, majorType);
+}
+
+/**
+ * Appends the CBOR Simple Type of value \a value to the CBOR stream provided by
+ * \a encoder.
+ *
+ * This function may return error CborErrorIllegalSimpleType if the \a value
+ * variable contains a number that is not a valid simple type.
+ */
+CborError cbor_encode_simple_value(CborEncoder *encoder, uint8_t value)
+{
+#ifndef CBOR_ENCODER_NO_CHECK_USER
+    /* check if this is a valid simple type */
+    if (value >= HalfPrecisionFloat && value <= Break)
+        return CborErrorIllegalSimpleType;
+#endif
+    return encode_number(encoder, value, SimpleTypesType << MajorTypeShift);
+}
+
+/**
+ * Appends the floating-point value of type \a fpType and pointed to by \a
+ * value to the CBOR stream provided by \a encoder. The value of \a fpType must
+ * be one of CborHalfFloatType, CborFloatType or CborDoubleType, otherwise the
+ * behavior of this function is undefined.
+ *
+ * This function is useful for code that needs to pass through floating point
+ * values but does not wish to have the actual floating-point code.
+ *
+ * \sa cbor_encode_half_float, cbor_encode_float_as_half_float, cbor_encode_float, cbor_encode_double
+ */
+CborError cbor_encode_floating_point(CborEncoder *encoder, CborType fpType, const void *value)
+{
+    unsigned size;
+    uint8_t buf[1 + sizeof(uint64_t)];
+    cbor_assert(fpType == CborHalfFloatType || fpType == CborFloatType || fpType == CborDoubleType);
+    buf[0] = fpType;
+
+    size = 2U << (fpType - CborHalfFloatType);
+    if (size == 8)
+        put64(buf + 1, *(const uint64_t*)value);
+    else if (size == 4)
+        put32(buf + 1, *(const uint32_t*)value);
+    else
+        put16(buf + 1, *(const uint16_t*)value);
+    saturated_decrement(encoder);
+    return append_to_buffer(encoder, buf, size + 1, CborEncoderAppendCborData);
+}
+
+/**
+ * Appends the CBOR tag \a tag to the CBOR stream provided by \a encoder.
+ *
+ * \sa CborTag
+ */
+CborError cbor_encode_tag(CborEncoder *encoder, CborTag tag)
+{
+    /* tags don't count towards the number of elements in an array or map */
+    return encode_number_no_update(encoder, tag, TagType << MajorTypeShift);
+}
+
+static CborError encode_string(CborEncoder *encoder, size_t length, uint8_t shiftedMajorType, const void *string)
+{
+    CborError err = encode_number(encoder, length, shiftedMajorType);
+    if (err && !isOomError(err))
+        return err;
+    return append_to_buffer(encoder, string, length, CborEncoderAppendStringData);
+}
+
+/**
+ * \fn CborError cbor_encode_text_stringz(CborEncoder *encoder, const char *string)
+ *
+ * Appends the null-terminated text string \a string to the CBOR stream
+ * provided by \a encoder. CBOR requires that \a string be valid UTF-8, but
+ * TinyCBOR makes no verification of correctness. The terminating null is not
+ * included in the stream.
+ *
+ * \sa cbor_encode_text_string, cbor_encode_byte_string
+ */
+
+/**
+ * Appends the byte string \a string of length \a length to the CBOR stream
+ * provided by \a encoder. CBOR byte strings are arbitrary raw data.
+ *
+ * \sa cbor_encode_text_stringz, cbor_encode_text_string
+ */
+CborError cbor_encode_byte_string(CborEncoder *encoder, const uint8_t *string, size_t length)
+{
+    return encode_string(encoder, length, ByteStringType << MajorTypeShift, string);
+}
+
+/**
+ * Appends the text string \a string of length \a length to the CBOR stream
+ * provided by \a encoder. CBOR requires that \a string be valid UTF-8, but
+ * TinyCBOR makes no verification of correctness.
+ *
+ * \sa CborError cbor_encode_text_stringz, cbor_encode_byte_string
+ */
+CborError cbor_encode_text_string(CborEncoder *encoder, const char *string, size_t length)
+{
+    return encode_string(encoder, length, TextStringType << MajorTypeShift, string);
+}
+
+#ifdef __GNUC__
+__attribute__((noinline))
+#endif
+static CborError create_container(CborEncoder *encoder, CborEncoder *container, size_t length, uint8_t shiftedMajorType)
+{
+    CborError err;
+    container->data.ptr = encoder->data.ptr;
+    container->end = encoder->end;
+    saturated_decrement(encoder);
+    container->remaining = length + 1;      /* overflow ok on CborIndefiniteLength */
+
+    cbor_static_assert((int)CborIteratorFlag_ContainerIsMap_ == (int)CborIteratorFlag_ContainerIsMap);
+    cbor_static_assert(((MapType << MajorTypeShift) & CborIteratorFlag_ContainerIsMap) == CborIteratorFlag_ContainerIsMap);
+    cbor_static_assert(((ArrayType << MajorTypeShift) & CborIteratorFlag_ContainerIsMap) == 0);
+    container->flags = shiftedMajorType & CborIteratorFlag_ContainerIsMap;
+    if (CBOR_ENCODER_WRITER_CONTROL == 0)
+        container->flags |= encoder->flags & CborIteratorFlag_WriterFunction;
+
+    if (length == CborIndefiniteLength) {
+        container->flags |= CborIteratorFlag_UnknownLength;
+        err = append_byte_to_buffer(container, shiftedMajorType + IndefiniteLength);
+    } else {
+        if (shiftedMajorType & CborIteratorFlag_ContainerIsMap)
+            container->remaining += length;
+        err = encode_number_no_update(container, length, shiftedMajorType);
+    }
+    return err;
+}
+
+/**
+ * Creates a CBOR array in the CBOR stream provided by \a parentEncoder and
+ * initializes \a arrayEncoder so that items can be added to the array using
+ * the CborEncoder functions. The array must be terminated by calling either
+ * cbor_encoder_close_container() or cbor_encoder_close_container_checked()
+ * with the same \a encoder and \a arrayEncoder parameters.
+ *
+ * The number of items inserted into the array must be exactly \a length items,
+ * otherwise the stream is invalid. If the number of items is not known when
+ * creating the array, the constant \ref CborIndefiniteLength may be passed as
+ * length instead, and an indefinite length array is created.
+ *
+ * \sa cbor_encoder_create_map
+ */
+CborError cbor_encoder_create_array(CborEncoder *parentEncoder, CborEncoder *arrayEncoder, size_t length)
+{
+    return create_container(parentEncoder, arrayEncoder, length, ArrayType << MajorTypeShift);
+}
+
+/**
+ * Creates a CBOR map in the CBOR stream provided by \a parentEncoder and
+ * initializes \a mapEncoder so that items can be added to the map using
+ * the CborEncoder functions. The map must be terminated by calling either
+ * cbor_encoder_close_container() or cbor_encoder_close_container_checked()
+ * with the same \a encoder and \a mapEncoder parameters.
+ *
+ * The number of pair of items inserted into the map must be exactly \a length
+ * items, otherwise the stream is invalid. If the number is not known
+ * when creating the map, the constant \ref CborIndefiniteLength may be passed as
+ * length instead, and an indefinite length map is created.
+ *
+ * \b{Implementation limitation:} TinyCBOR cannot encode more than SIZE_MAX/2
+ * key-value pairs in the stream. If the length \a length is larger than this
+ * value (and is not \ref CborIndefiniteLength), this function returns error
+ * CborErrorDataTooLarge.
+ *
+ * \sa cbor_encoder_create_array
+ */
+CborError cbor_encoder_create_map(CborEncoder *parentEncoder, CborEncoder *mapEncoder, size_t length)
+{
+    if (length != CborIndefiniteLength && length > SIZE_MAX / 2)
+        return CborErrorDataTooLarge;
+    return create_container(parentEncoder, mapEncoder, length, MapType << MajorTypeShift);
+}
+
+/**
+ * Closes the CBOR container (array or map) provided by \a containerEncoder and
+ * updates the CBOR stream provided by \a encoder. Both parameters must be the
+ * same as were passed to cbor_encoder_create_array() or
+ * cbor_encoder_create_map().
+ *
+ * Since version 0.5, this function verifies that the number of items (or pairs
+ * of items, in the case of a map) was correct. It is no longer necessary to call
+ * cbor_encoder_close_container_checked() instead.
+ *
+ * \sa cbor_encoder_create_array(), cbor_encoder_create_map()
+ */
+CborError cbor_encoder_close_container(CborEncoder *parentEncoder, const CborEncoder *containerEncoder)
+{
+    // synchronise buffer state with that of the container
+    parentEncoder->end = containerEncoder->end;
+    parentEncoder->data = containerEncoder->data;
+
+    if (containerEncoder->flags & CborIteratorFlag_UnknownLength)
+        return append_byte_to_buffer(parentEncoder, BreakByte);
+
+    if (containerEncoder->remaining != 1)
+        return containerEncoder->remaining == 0 ? CborErrorTooManyItems : CborErrorTooFewItems;
+
+    if (!parentEncoder->end)
+        return CborErrorOutOfMemory;    /* keep the state */
+
+    return CborNoError;
+}
+
+/**
+ * \fn CborError cbor_encode_boolean(CborEncoder *encoder, bool value)
+ *
+ * Appends the boolean value \a value to the CBOR stream provided by \a encoder.
+ */
+
+/**
+ * \fn CborError cbor_encode_null(CborEncoder *encoder)
+ *
+ * Appends the CBOR type representing a null value to the CBOR stream provided
+ * by \a encoder.
+ *
+ * \sa cbor_encode_undefined()
+ */
+
+/**
+ * \fn CborError cbor_encode_undefined(CborEncoder *encoder)
+ *
+ * Appends the CBOR type representing an undefined value to the CBOR stream
+ * provided by \a encoder.
+ *
+ * \sa cbor_encode_null()
+ */
+
+/**
+ * \fn CborError cbor_encode_half_float(CborEncoder *encoder, const void *value)
+ *
+ * Appends the IEEE 754 half-precision (16-bit) floating point value pointed to
+ * by \a value to the CBOR stream provided by \a encoder.
+ *
+ * \sa cbor_encode_floating_point(), cbor_encode_float(), cbor_encode_double()
+ */
+
+/**
+ * \fn CborError cbor_encode_float_as_half_float(CborEncoder *encoder, float value)
+ *
+ * Convert the IEEE 754 single-precision (32-bit) floating point value \a value
+ * to the IEEE 754 half-precision (16-bit) floating point value and append it
+ * to the CBOR stream provided by \a encoder.
+ * The \a value should be in the range of the IEEE 754 half-precision floating point type,
+ * INFINITY, -INFINITY, or NAN, otherwise the behavior of this function is undefined.
+ *
+ * \sa cbor_encode_floating_point(), cbor_encode_float(), cbor_encode_double()
+ */
+
+/**
+ * \fn CborError cbor_encode_float(CborEncoder *encoder, float value)
+ *
+ * Appends the IEEE 754 single-precision (32-bit) floating point value \a value
+ * to the CBOR stream provided by \a encoder.
+ *
+ * \sa cbor_encode_floating_point(), cbor_encode_half_float(), cbor_encode_float_as_half_float(), cbor_encode_double()
+ */
+
+/**
+ * \fn CborError cbor_encode_double(CborEncoder *encoder, double value)
+ *
+ * Appends the IEEE 754 double-precision (64-bit) floating point value \a value
+ * to the CBOR stream provided by \a encoder.
+ *
+ * \sa cbor_encode_floating_point(), cbor_encode_half_float(), cbor_encode_float_as_half_float(), cbor_encode_float()
+ */
+
+/**
+ * \fn size_t cbor_encoder_get_buffer_size(const CborEncoder *encoder, const uint8_t *buffer)
+ *
+ * Returns the total size of the buffer starting at \a buffer after the
+ * encoding finished without errors. The \a encoder and \a buffer arguments
+ * must be the same as supplied to cbor_encoder_init().
+ *
+ * If the encoding process had errors, the return value of this function is
+ * meaningless. If the only errors were CborErrorOutOfMemory, instead use
+ * cbor_encoder_get_extra_bytes_needed() to find out by how much to grow the
+ * buffer before encoding again.
+ *
+ * See \ref CborEncoding for an example of using this function.
+ *
+ * \sa cbor_encoder_init(), cbor_encoder_get_extra_bytes_needed(), CborEncoding
+ */
+
+/**
+ * \fn size_t cbor_encoder_get_extra_bytes_needed(const CborEncoder *encoder)
+ *
+ * Returns how many more bytes the original buffer supplied to
+ * cbor_encoder_init() needs to be extended by so that no CborErrorOutOfMemory
+ * condition will happen for the encoding. If the buffer was big enough, this
+ * function returns 0. The \a encoder must be the original argument as passed
+ * to cbor_encoder_init().
+ *
+ * This function is usually called after an encoding sequence ended with one or
+ * more CborErrorOutOfMemory errors, but no other error. If any other error
+ * happened, the return value of this function is meaningless.
+ *
+ * See \ref CborEncoding for an example of using this function.
+ *
+ * \sa cbor_encoder_init(), cbor_encoder_get_buffer_size(), CborEncoding
+ */
+
+/** @} */

lib/cbor/tinycbor/src/cborencoder_close_container_checked.c

@@ -0,0 +1,57 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#define _BSD_SOURCE 1
+#define _DEFAULT_SOURCE 1
+#ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+#endif
+
+#include "cbor.h"
+
+/**
+ * \addtogroup CborEncoding
+ * @{
+ */
+
+/**
+ * @deprecated
+ *
+ * Closes the CBOR container (array or map) provided by \a containerEncoder and
+ * updates the CBOR stream provided by \a encoder. Both parameters must be the
+ * same as were passed to cbor_encoder_create_array() or
+ * cbor_encoder_create_map().
+ *
+ * Prior to version 0.5, cbor_encoder_close_container() did not check the
+ * number of items added. Since that version, it does and now
+ * cbor_encoder_close_container_checked() is no longer needed.
+ *
+ * \sa cbor_encoder_create_array(), cbor_encoder_create_map()
+ */
+CborError cbor_encoder_close_container_checked(CborEncoder *encoder, const CborEncoder *containerEncoder)
+{
+    return cbor_encoder_close_container(encoder, containerEncoder);
+}
+
+/** @} */

lib/cbor/tinycbor/src/cborencoder_float.c

@@ -0,0 +1,42 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 S.Phirsov
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#define _BSD_SOURCE 1
+#define _DEFAULT_SOURCE 1
+#ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+#endif
+
+#include "cbor.h"
+
+#include "cborinternal_p.h"
+
+#ifndef CBOR_NO_HALF_FLOAT_TYPE
+CborError cbor_encode_float_as_half_float(CborEncoder *encoder, float value)
+{
+    uint16_t v = (uint16_t)encode_half(value);
+
+    return cbor_encode_floating_point(encoder, CborHalfFloatType, &v);
+}
+#endif

lib/cbor/tinycbor/src/cborerrorstrings.c

@@ -0,0 +1,188 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#include "cbor.h"
+
+#ifndef _
+#  define _(msg)    msg
+#endif
+
+/**
+ * \enum CborError
+ * \ingroup CborGlobals
+ * The CborError enum contains the possible error values used by the CBOR encoder and decoder.
+ *
+ * TinyCBOR functions report success by returning CborNoError, or one error
+ * condition by returning one of the values below. One exception is the
+ * out-of-memory condition (CborErrorOutOfMemory), which the functions for \ref
+ * CborEncoding may report in bit-wise OR with other conditions.
+ *
+ * This technique allows code to determine whether the only error condition was
+ * a lack of buffer space, which may not be a fatal condition if the buffer can
+ * be resized. Additionally, the functions for \ref CborEncoding may continue
+ * to be used even after CborErrorOutOfMemory is returned, and instead they
+ * will simply calculate the extra space needed.
+ *
+ * \value CborNoError                   No error occurred
+ * \omitvalue CborUnknownError
+ * \value CborErrorUnknownLength        Request for the length of an array, map or string whose length is not provided in the CBOR stream
+ * \value CborErrorAdvancePastEOF       Not enough data in the stream to decode item (decoding would advance past end of stream)
+ * \value CborErrorIO                   An I/O error occurred, probably due to an out-of-memory situation
+ * \value CborErrorGarbageAtEnd         Bytes exist past the end of the CBOR stream
+ * \value CborErrorUnexpectedEOF        End of stream reached unexpectedly
+ * \value CborErrorUnexpectedBreak      A CBOR break byte was found where not expected
+ * \value CborErrorUnknownType          An unknown type (future extension to CBOR) was found in the stream
+ * \value CborErrorIllegalType          An invalid type was found while parsing a chunked CBOR string
+ * \value CborErrorIllegalNumber        An illegal initial byte (encoding unspecified additional information) was found
+ * \value CborErrorIllegalSimpleType    An illegal encoding of a CBOR Simple Type of value less than 32 was found
+ * \omitvalue CborErrorUnknownSimpleType
+ * \omitvalue CborErrorUnknownTag
+ * \omitvalue CborErrorInappropriateTagForType
+ * \omitvalue CborErrorDuplicateObjectKeys
+ * \value CborErrorInvalidUtf8TextString Illegal UTF-8 encoding found while parsing CBOR Text String
+ * \value CborErrorTooManyItems         Too many items were added to CBOR map or array of pre-determined length
+ * \value CborErrorTooFewItems          Too few items were added to CBOR map or array of pre-determined length
+ * \value CborErrorDataTooLarge         Data item size exceeds TinyCBOR's implementation limits
+ * \value CborErrorNestingTooDeep       Data item nesting exceeds TinyCBOR's implementation limits
+ * \omitvalue CborErrorUnsupportedType
+ * \value CborErrorJsonObjectKeyIsAggregate Conversion to JSON failed because the key in a map is a CBOR map or array
+ * \value CborErrorJsonObjectKeyNotString Conversion to JSON failed because the key in a map is not a text string
+ * \value CborErrorOutOfMemory          During CBOR encoding, the buffer provided is insufficient for encoding the data item;
+ *                                      in other situations, TinyCBOR failed to allocate memory
+ * \value CborErrorInternalError        An internal error occurred in TinyCBOR
+ */
+
+/**
+ * \ingroup CborGlobals
+ * Returns the error string corresponding to the CBOR error condition \a error.
+ */
+const char *cbor_error_string(CborError error)
+{
+    switch (error) {
+    case CborNoError:
+        return "";
+
+    case CborUnknownError:
+        return _("unknown error");
+
+    case CborErrorOutOfMemory:
+        return _("out of memory/need more memory");
+
+    case CborErrorUnknownLength:
+        return _("unknown length (attempted to get the length of a map/array/string of indeterminate length");
+
+    case CborErrorAdvancePastEOF:
+        return _("attempted to advance past EOF");
+
+    case CborErrorIO:
+        return _("I/O error");
+
+    case CborErrorGarbageAtEnd:
+        return _("garbage after the end of the content");
+
+    case CborErrorUnexpectedEOF:
+        return _("unexpected end of data");
+
+    case CborErrorUnexpectedBreak:
+        return _("unexpected 'break' byte");
+
+    case CborErrorUnknownType:
+        return _("illegal byte (encodes future extension type)");
+
+    case CborErrorIllegalType:
+        return _("mismatched string type in chunked string");
+
+    case CborErrorIllegalNumber:
+        return _("illegal initial byte (encodes unspecified additional information)");
+
+    case CborErrorIllegalSimpleType:
+        return _("illegal encoding of simple type smaller than 32");
+
+    case CborErrorNoMoreStringChunks:
+        return _("no more byte or text strings available");
+
+    case CborErrorUnknownSimpleType:
+        return _("unknown simple type");
+
+    case CborErrorUnknownTag:
+        return _("unknown tag");
+
+    case CborErrorInappropriateTagForType:
+        return _("inappropriate tag for type");
+
+    case CborErrorDuplicateObjectKeys:
+        return _("duplicate keys in object");
+
+    case CborErrorInvalidUtf8TextString:
+        return _("invalid UTF-8 content in string");
+
+    case CborErrorExcludedType:
+        return _("excluded type found");
+
+    case CborErrorExcludedValue:
+        return _("excluded value found");
+
+    case CborErrorImproperValue:
+    case CborErrorOverlongEncoding:
+        return _("value encoded in non-canonical form");
+
+    case CborErrorMapKeyNotString:
+    case CborErrorJsonObjectKeyNotString:
+        return _("key in map is not a string");
+
+    case CborErrorMapNotSorted:
+        return _("map is not sorted");
+
+    case CborErrorMapKeysNotUnique:
+        return _("map keys are not unique");
+
+    case CborErrorTooManyItems:
+        return _("too many items added to encoder");
+
+    case CborErrorTooFewItems:
+        return _("too few items added to encoder");
+
+    case CborErrorDataTooLarge:
+        return _("internal error: data too large");
+
+    case CborErrorNestingTooDeep:
+        return _("internal error: too many nested containers found in recursive function");
+
+    case CborErrorUnsupportedType:
+        return _("unsupported type");
+
+    case CborErrorUnimplementedValidation:
+        return _("validation not implemented for the current parser state");
+
+    case CborErrorJsonObjectKeyIsAggregate:
+        return _("conversion to JSON failed: key in object is an array or map");
+
+    case CborErrorJsonNotImplemented:
+        return _("conversion to JSON failed: open_memstream unavailable");
+
+    case CborErrorInternalError:
+        return _("internal error");
+    }
+    return cbor_error_string(CborUnknownError);
+}

lib/cbor/tinycbor/src/cborinternal_p.h

@@ -0,0 +1,316 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef CBORINTERNAL_P_H
+#define CBORINTERNAL_P_H
+
+#include "compilersupport_p.h"
+
+#ifndef CBOR_NO_FLOATING_POINT
+#  include <float.h>
+#  include <math.h>
+#else
+#  ifndef CBOR_NO_HALF_FLOAT_TYPE
+#    define CBOR_NO_HALF_FLOAT_TYPE     1
+#  endif
+#endif
+
+#ifndef CBOR_NO_HALF_FLOAT_TYPE
+#  if defined(__F16C__) || defined(__AVX2__)
+#    include <immintrin.h>
+static inline unsigned short encode_half(float val)
+{
+    __m128i m = _mm_cvtps_ph(_mm_set_ss(val), _MM_FROUND_CUR_DIRECTION);
+    return _mm_extract_epi16(m, 0);
+}
+static inline float decode_half(unsigned short half)
+{
+    __m128i m = _mm_cvtsi32_si128(half);
+    return _mm_cvtss_f32(_mm_cvtph_ps(m));
+}
+#  else
+/* software implementation of float-to-fp16 conversions */
+static inline unsigned short encode_half(double val)
+{
+    uint64_t v;
+    int sign, exp, mant;
+    memcpy(&v, &val, sizeof(v));
+    sign = v >> 63 << 15;
+    exp = (v >> 52) & 0x7ff;
+    mant = v << 12 >> 12 >> (53-11);    /* keep only the 11 most significant bits of the mantissa */
+    exp -= 1023;
+    if (exp == 1024) {
+        /* infinity or NaN */
+        exp = 16;
+        mant >>= 1;
+    } else if (exp >= 16) {
+        /* overflow, as largest number */
+        exp = 15;
+        mant = 1023;
+    } else if (exp >= -14) {
+        /* regular normal */
+    } else if (exp >= -24) {
+        /* subnormal */
+        mant |= 1024;
+        mant >>= -(exp + 14);
+        exp = -15;
+    } else {
+        /* underflow, make zero */
+        return 0;
+    }
+
+    /* safe cast here as bit operations above guarantee not to overflow */
+    return (unsigned short)(sign | ((exp + 15) << 10) | mant);
+}
+
+/* this function was copied & adapted from RFC 7049 Appendix D */
+static inline double decode_half(unsigned short half)
+{
+    int exp = (half >> 10) & 0x1f;
+    int mant = half & 0x3ff;
+    double val;
+    if (exp == 0) val = ldexp(mant, -24);
+    else if (exp != 31) val = ldexp(mant + 1024, exp - 25);
+    else val = mant == 0 ? INFINITY : NAN;
+    return half & 0x8000 ? -val : val;
+}
+#  endif
+#endif /* CBOR_NO_HALF_FLOAT_TYPE */
+
+#ifndef CBOR_INTERNAL_API
+#  define CBOR_INTERNAL_API
+#endif
+
+#ifndef CBOR_PARSER_MAX_RECURSIONS
+#  define CBOR_PARSER_MAX_RECURSIONS 1024
+#endif
+
+#ifndef CBOR_ENCODER_WRITER_CONTROL
+#  define CBOR_ENCODER_WRITER_CONTROL   0
+#endif
+#ifndef CBOR_PARSER_READER_CONTROL
+#  define CBOR_PARSER_READER_CONTROL    0
+#endif
+
+/*
+ * CBOR Major types
+ * Encoded in the high 3 bits of the descriptor byte
+ * See http://tools.ietf.org/html/rfc7049#section-2.1
+ */
+typedef enum CborMajorTypes {
+    UnsignedIntegerType = 0U,
+    NegativeIntegerType = 1U,
+    ByteStringType = 2U,
+    TextStringType = 3U,
+    ArrayType = 4U,
+    MapType = 5U,           /* a.k.a. object */
+    TagType = 6U,
+    SimpleTypesType = 7U
+} CborMajorTypes;
+
+/*
+ * CBOR simple and floating point types
+ * Encoded in the low 8 bits of the descriptor byte when the
+ * Major Type is 7.
+ */
+typedef enum CborSimpleTypes {
+    FalseValue              = 20,
+    TrueValue               = 21,
+    NullValue               = 22,
+    UndefinedValue          = 23,
+    SimpleTypeInNextByte    = 24,   /* not really a simple type */
+    HalfPrecisionFloat      = 25,   /* ditto */
+    SinglePrecisionFloat    = 26,   /* ditto */
+    DoublePrecisionFloat    = 27,   /* ditto */
+    Break                   = 31
+} CborSimpleTypes;
+
+enum {
+    SmallValueBitLength     = 5U,
+    SmallValueMask          = (1U << SmallValueBitLength) - 1,      /* 31 */
+    Value8Bit               = 24U,
+    Value16Bit              = 25U,
+    Value32Bit              = 26U,
+    Value64Bit              = 27U,
+    IndefiniteLength        = 31U,
+
+    MajorTypeShift          = SmallValueBitLength,
+    MajorTypeMask           = (int) (~0U << MajorTypeShift),
+
+    BreakByte               = (unsigned)Break | (SimpleTypesType << MajorTypeShift)
+};
+
+static inline void copy_current_position(CborValue *dst, const CborValue *src)
+{
+    /* This "if" is here for pedantry only: the two branches should perform
+     * the same memory operation. */
+    if (src->parser->flags & CborParserFlag_ExternalSource)
+        dst->source.token = src->source.token;
+    else
+        dst->source.ptr = src->source.ptr;
+}
+
+static inline bool can_read_bytes(const CborValue *it, size_t n)
+{
+    if (CBOR_PARSER_READER_CONTROL >= 0) {
+        if (it->parser->flags & CborParserFlag_ExternalSource || CBOR_PARSER_READER_CONTROL != 0) {
+#ifdef CBOR_PARSER_CAN_READ_BYTES_FUNCTION
+            return CBOR_PARSER_CAN_READ_BYTES_FUNCTION(it->source.token, n);
+#else
+            return it->parser->source.ops->can_read_bytes(it->source.token, n);
+#endif
+        }
+    }
+
+    /* Convert the pointer subtraction to size_t since end >= ptr
+     * (this prevents issues with (ptrdiff_t)n becoming negative).
+     */
+    return (size_t)(it->parser->source.end - it->source.ptr) >= n;
+}
+
+static inline void advance_bytes(CborValue *it, size_t n)
+{
+    if (CBOR_PARSER_READER_CONTROL >= 0) {
+        if (it->parser->flags & CborParserFlag_ExternalSource || CBOR_PARSER_READER_CONTROL != 0) {
+#ifdef CBOR_PARSER_ADVANCE_BYTES_FUNCTION
+            CBOR_PARSER_ADVANCE_BYTES_FUNCTION(it->source.token, n);
+#else
+            it->parser->source.ops->advance_bytes(it->source.token, n);
+#endif
+            return;
+        }
+    }
+
+    it->source.ptr += n;
+}
+
+static inline CborError transfer_string(CborValue *it, const void **ptr, size_t offset, size_t len)
+{
+    if (CBOR_PARSER_READER_CONTROL >= 0) {
+        if (it->parser->flags & CborParserFlag_ExternalSource || CBOR_PARSER_READER_CONTROL != 0) {
+#ifdef CBOR_PARSER_TRANSFER_STRING_FUNCTION
+            return CBOR_PARSER_TRANSFER_STRING_FUNCTION(it->source.token, ptr, offset, len);
+#else
+            return it->parser->source.ops->transfer_string(it->source.token, ptr, offset, len);
+#endif
+        }
+    }
+
+    it->source.ptr += offset;
+    if (can_read_bytes(it, len)) {
+        *CONST_CAST(const void **, ptr) = it->source.ptr;
+        it->source.ptr += len;
+        return CborNoError;
+    }
+    return CborErrorUnexpectedEOF;
+}
+
+static inline void *read_bytes_unchecked(const CborValue *it, void *dst, size_t offset, size_t n)
+{
+    if (CBOR_PARSER_READER_CONTROL >= 0) {
+        if (it->parser->flags & CborParserFlag_ExternalSource || CBOR_PARSER_READER_CONTROL != 0) {
+#ifdef CBOR_PARSER_READ_BYTES_FUNCTION
+            return CBOR_PARSER_READ_BYTES_FUNCTION(it->source.token, dst, offset, n);
+#else
+            return it->parser->source.ops->read_bytes(it->source.token, dst, offset, n);
+#endif
+        }
+    }
+
+    return memcpy(dst, it->source.ptr + offset, n);
+}
+
+#ifdef __GNUC__
+__attribute__((warn_unused_result))
+#endif
+static inline void *read_bytes(const CborValue *it, void *dst, size_t offset, size_t n)
+{
+    if (can_read_bytes(it, offset + n))
+        return read_bytes_unchecked(it, dst, offset, n);
+    return NULL;
+}
+
+static inline uint16_t read_uint8(const CborValue *it, size_t offset)
+{
+    uint8_t result;
+    read_bytes_unchecked(it, &result, offset, sizeof(result));
+    return result;
+}
+
+static inline uint16_t read_uint16(const CborValue *it, size_t offset)
+{
+    uint16_t result;
+    read_bytes_unchecked(it, &result, offset, sizeof(result));
+    return cbor_ntohs(result);
+}
+
+static inline uint32_t read_uint32(const CborValue *it, size_t offset)
+{
+    uint32_t result;
+    read_bytes_unchecked(it, &result, offset, sizeof(result));
+    return cbor_ntohl(result);
+}
+
+static inline uint64_t read_uint64(const CborValue *it, size_t offset)
+{
+    uint64_t result;
+    read_bytes_unchecked(it, &result, offset, sizeof(result));
+    return cbor_ntohll(result);
+}
+
+static inline CborError extract_number_checked(const CborValue *it, uint64_t *value, size_t *bytesUsed)
+{
+    uint8_t descriptor;
+    size_t bytesNeeded = 0;
+
+    /* We've already verified that there's at least one byte to be read */
+    read_bytes_unchecked(it, &descriptor, 0, 1);
+    descriptor &= SmallValueMask;
+    if (descriptor < Value8Bit) {
+        *value = descriptor;
+    } else if (unlikely(descriptor > Value64Bit)) {
+        return CborErrorIllegalNumber;
+    } else {
+        bytesNeeded = (size_t)(1 << (descriptor - Value8Bit));
+        if (!can_read_bytes(it, 1 + bytesNeeded))
+            return CborErrorUnexpectedEOF;
+        if (descriptor <= Value16Bit) {
+            if (descriptor == Value16Bit)
+                *value = read_uint16(it, 1);
+            else
+                *value = read_uint8(it, 1);
+        } else {
+            if (descriptor == Value32Bit)
+                *value = read_uint32(it, 1);
+            else
+                *value = read_uint64(it, 1);
+        }
+    }
+
+    if (bytesUsed)
+        *bytesUsed = bytesNeeded;
+    return CborNoError;
+}
+
+#endif /* CBORINTERNAL_P_H */

lib/cbor/tinycbor/src/cborjson.h

@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef CBORJSON_H
+#define CBORJSON_H
+
+#include "cbor.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Conversion to JSON */
+enum CborToJsonFlags
+{
+    CborConvertAddMetadata = 1,
+    CborConvertTagsToObjects = 2,
+    CborConvertIgnoreTags = 0,
+
+    CborConvertObeyByteStringTags = 0,
+    CborConvertByteStringsToBase64Url = 4,
+
+    CborConvertRequireMapStringKeys = 0,
+    CborConvertStringifyMapKeys = 8,
+
+    CborConvertDefaultFlags = 0
+};
+
+CBOR_API CborError cbor_value_to_json_advance(FILE *out, CborValue *value, int flags);
+CBOR_INLINE_API CborError cbor_value_to_json(FILE *out, const CborValue *value, int flags)
+{
+    CborValue copy = *value;
+    return cbor_value_to_json_advance(out, &copy, flags);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CBORJSON_H */
+

lib/cbor/tinycbor/src/cborparser_dup_string.c

@@ -0,0 +1,119 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef _BSD_SOURCE
+#define _BSD_SOURCE 1
+#endif
+#ifndef _DEFAULT_SOURCE
+#define _DEFAULT_SOURCE 1
+#endif
+#ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+#endif
+
+#include "cbor.h"
+#include "compilersupport_p.h"
+#include <stdlib.h>
+
+/**
+ * \fn CborError cbor_value_dup_text_string(const CborValue *value, char **buffer, size_t *buflen, CborValue *next)
+ *
+ * Allocates memory for the string pointed by \a value and copies it into this
+ * buffer. The pointer to the buffer is stored in \a buffer and the number of
+ * bytes copied is stored in \a buflen (those variables must not be NULL).
+ *
+ * If the iterator \a value does not point to a text string, the behaviour is
+ * undefined, so checking with \ref cbor_value_get_type or \ref
+ * cbor_value_is_text_string is recommended.
+ *
+ * If \c malloc returns a NULL pointer, this function will return error
+ * condition \ref CborErrorOutOfMemory.
+ *
+ * On success, \c{*buffer} will contain a valid pointer that must be freed by
+ * calling \c{free()}. This is the case even for zero-length strings.
+ *
+ * The \a next pointer, if not null, will be updated to point to the next item
+ * after this string. If \a value points to the last item, then \a next will be
+ * invalid.
+ *
+ * This function may not run in constant time (it will run in O(n) time on the
+ * number of chunks). It requires constant memory (O(1)) in addition to the
+ * malloc'ed block.
+ *
+ * \note This function does not perform UTF-8 validation on the incoming text
+ * string.
+ *
+ * \sa cbor_value_get_text_string_chunk(), cbor_value_copy_text_string(), cbor_value_dup_byte_string()
+ */
+
+/**
+ * \fn CborError cbor_value_dup_byte_string(const CborValue *value, uint8_t **buffer, size_t *buflen, CborValue *next)
+ *
+ * Allocates memory for the string pointed by \a value and copies it into this
+ * buffer. The pointer to the buffer is stored in \a buffer and the number of
+ * bytes copied is stored in \a buflen (those variables must not be NULL).
+ *
+ * If the iterator \a value does not point to a byte string, the behaviour is
+ * undefined, so checking with \ref cbor_value_get_type or \ref
+ * cbor_value_is_byte_string is recommended.
+ *
+ * If \c malloc returns a NULL pointer, this function will return error
+ * condition \ref CborErrorOutOfMemory.
+ *
+ * On success, \c{*buffer} will contain a valid pointer that must be freed by
+ * calling \c{free()}. This is the case even for zero-length strings.
+ *
+ * The \a next pointer, if not null, will be updated to point to the next item
+ * after this string. If \a value points to the last item, then \a next will be
+ * invalid.
+ *
+ * This function may not run in constant time (it will run in O(n) time on the
+ * number of chunks). It requires constant memory (O(1)) in addition to the
+ * malloc'ed block.
+ *
+ * \sa cbor_value_get_text_string_chunk(), cbor_value_copy_byte_string(), cbor_value_dup_text_string()
+ */
+CborError _cbor_value_dup_string(const CborValue *value, void **buffer, size_t *buflen, CborValue *next)
+{
+    CborError err;
+    cbor_assert(buffer);
+    cbor_assert(buflen);
+    *buflen = SIZE_MAX;
+    err = _cbor_value_copy_string(value, NULL, buflen, NULL);
+    if (err)
+        return err;
+
+    ++*buflen;
+    *buffer = malloc(*buflen);
+    if (!*buffer) {
+        /* out of memory */
+        return CborErrorOutOfMemory;
+    }
+    err = _cbor_value_copy_string(value, *buffer, buflen, next);
+    if (err) {
+        free(*buffer);
+        return err;
+    }
+    return CborNoError;
+}

lib/cbor/tinycbor/src/cborparser_float.c

@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 S.Phirsov
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#define _BSD_SOURCE 1
+#define _DEFAULT_SOURCE 1
+#ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+#endif
+
+#include "cbor.h"
+
+#include "cborinternal_p.h"
+
+#ifndef CBOR_NO_HALF_FLOAT_TYPE
+/**
+ * Retrieves the CBOR half-precision floating point (16-bit) value that \a
+ * value points to, converts it to the float and store it in \a result.
+ * If the iterator \a value does not point to a half-precision floating
+ * point value, the behavior is undefined, so checking with \ref
+ * cbor_value_get_type or with \ref cbor_value_is_half_float is recommended.
+ * \sa cbor_value_get_type(), cbor_value_is_valid(), cbor_value_is_half_float(), cbor_value_get_half_float(), cbor_value_get_float()
+ */
+CborError cbor_value_get_half_float_as_float(const CborValue *value, float *result)
+{
+    uint16_t v;
+    CborError err = cbor_value_get_half_float(value, &v);
+    cbor_assert(err == CborNoError);
+
+    *result = (float)decode_half((unsigned short)v);
+
+    return CborNoError;
+}
+#endif

lib/cbor/tinycbor/src/cborpretty.c

@@ -0,0 +1,579 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#define _BSD_SOURCE 1
+#define _DEFAULT_SOURCE 1
+#ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+#endif
+
+#include "cbor.h"
+#include "cborinternal_p.h"
+#include "compilersupport_p.h"
+#include "utf8_p.h"
+
+#include <inttypes.h>
+#include <string.h>
+
+/**
+ * \defgroup CborPretty Converting CBOR to text
+ * \brief Group of functions used to convert CBOR to text form.
+ *
+ * This group contains two functions that can be used to convert a \ref
+ * CborValue object to a text representation. This module attempts to follow
+ * the recommendations from RFC 7049 section 6 "Diagnostic Notation", though it
+ * has a few differences. They are noted below.
+ *
+ * TinyCBOR does not provide a way to convert from the text representation back
+ * to encoded form. To produce a text form meant to be parsed, CborToJson is
+ * recommended instead.
+ *
+ * Either of the functions in this section will attempt to convert exactly one
+ * CborValue object to text. Those functions may return any error documented
+ * for the functions for CborParsing. In addition, if the C standard library
+ * stream functions return with error, the text conversion will return with
+ * error CborErrorIO.
+ *
+ * These functions also perform UTF-8 validation in CBOR text strings. If they
+ * encounter a sequence of bytes that is not permitted in UTF-8, they will return
+ * CborErrorInvalidUtf8TextString. That includes encoding of surrogate points
+ * in UTF-8.
+ *
+ * \warning The output type produced by these functions is not guaranteed to
+ * remain stable. A future update of TinyCBOR may produce different output for
+ * the same input and parsers may be unable to handle it.
+ *
+ * \sa CborParsing, CborToJson, cbor_parser_init()
+ */
+
+/**
+ * \addtogroup CborPretty
+ * @{
+ * <h2 class="groupheader">Text format</h2>
+ *
+ * As described in RFC 7049 section 6 "Diagnostic Notation", the format is
+ * largely borrowed from JSON, but modified to suit CBOR's different data
+ * types. TinyCBOR makes further modifications to distinguish different, but
+ * similar values.
+ *
+ * CBOR values are currently encoded as follows:
+ * \par Integrals (unsigned and negative)
+ *      Base-10 (decimal) text representation of the value
+ * \par Byte strings:
+ *      <tt>"h'"</tt> followed by the Base16 (hex) representation of the binary data, followed by an ending quote (')
+ * \par Text strings:
+ *      C-style escaped string in quotes, with C11/C++11 escaping of Unicode codepoints above U+007F.
+ * \par Tags:
+ *      Tag value, with the tagged value in parentheses. No special encoding of the tagged value is performed.
+ * \par Simple types:
+ *      <tt>"simple(nn)"</tt> where \c nn is the simple value
+ * \par Null:
+ *      \c null
+ * \par Undefined:
+ *      \c undefined
+ * \par Booleans:
+ *      \c true or \c false
+ * \par Floating point:
+ *      If NaN or infinite, the actual words \c NaN or \c infinite.
+ *      Otherwise, the decimal representation with as many digits as necessary to ensure no loss of information.
+ *      By default, float values are suffixed by "f" and half-float values suffixed by "f16" (doubles have no suffix).
+ *      If the CborPrettyNumericEncodingIndicators flag is active, the values instead are encoded following the
+ *      Section 6 recommended encoding indicators: float values are suffixed with "_2" and half-float with "_1".
+ *      A decimal point is always present.
+ * \par Arrays:
+ *      Comma-separated list of elements, enclosed in square brackets ("[" and "]").
+ * \par Maps:
+ *      Comma-separated list of key-value pairs, with the key and value separated
+ *      by a colon (":"), enclosed in curly braces ("{" and "}").
+ *
+ * The CborPrettyFlags enumerator contains flags to control some aspects of the
+ * encoding:
+ * \par String fragmentation
+ *      When the CborPrettyShowStringFragments option is active, text and byte
+ *      strings that are transmitted in fragments are shown instead inside
+ *      parentheses ("(" and ")") with no preceding number and each fragment is
+ *      displayed individually. If a tag precedes the string, then the output
+ *      will contain a double set of parentheses. If the option is not active,
+ *      the fragments are merged together and the display will not show any
+ *      difference from a string transmitted with determinate length.
+ * \par Encoding indicators
+ *      Numbers and lengths in CBOR can be encoded in multiple representations.
+ *      If the CborPrettyIndicateOverlongNumbers option is active, numbers
+ *      and lengths that are transmitted in a longer encoding than necessary
+ *      will be indicated, by appending an underscore ("_") to either the
+ *      number or the opening bracket or brace, followed by a number
+ *      indicating the CBOR additional information: 0 for 1 byte, 1 for 2
+ *      bytes, 2 for 4 bytes and 3 for 8 bytes.
+ *      If the CborPrettyIndicateIndeterminateLength option is active, maps,
+ *      arrays and strings encoded with indeterminate length will be marked by
+ *      an underscore after the opening bracket or brace or the string (if not
+ *      showing fragments), without a number after it.
+ */
+
+/**
+ * \enum CborPrettyFlags
+ * The CborPrettyFlags enum contains flags that control the conversion of CBOR to text format.
+ *
+ * \value CborPrettyNumericEncodingIndicators   Use numeric encoding indicators instead of textual for float and half-float.
+ * \value CborPrettyTextualEncodingIndicators   Use textual encoding indicators for float ("f") and half-float ("f16").
+ * \value CborPrettyIndicateIndeterminateLength (default) Indicate when a map or array has indeterminate length.
+ * \value CborPrettyIndicateOverlongNumbers     Indicate when a number or length was encoded with more bytes than needed.
+ * \value CborPrettyShowStringFragments         If the byte or text string is transmitted in chunks, show each individually.
+ * \value CborPrettyMergeStringFragment         Merge all chunked byte or text strings and display them in a single entry.
+ * \value CborPrettyDefaultFlags                Default conversion flags.
+ */
+
+#ifndef CBOR_NO_FLOATING_POINT
+static inline bool convertToUint64(double v, uint64_t *absolute)
+{
+    double supremum;
+    v = fabs(v);
+
+    /* C11 standard section 6.3.1.4 "Real floating and integer" says:
+     *
+     *  1 When a finite value of real floating type is converted to an integer
+     *    type other than _Bool, the fractional part is discarded (i.e., the
+     *    value is truncated toward zero). If the value of the integral part
+     *    cannot be represented by the integer type, the behavior is undefined.
+     *
+     * So we must perform a range check that v <= UINT64_MAX, but we can't use
+     * UINT64_MAX + 1.0 because the standard continues:
+     *
+     *  2 When a value of integer type is converted to a real floating type, if
+     *    the value being converted can be represented exactly in the new type,
+     *    it is unchanged. If the value being converted is in the range of
+     *    values that can be represented but cannot be represented exactly, the
+     *    result is either the nearest higher or nearest lower representable
+     *    value, chosen in an implementation-defined manner.
+     */
+    supremum = -2.0 * INT64_MIN;     /* -2 * (- 2^63) == 2^64 */
+    if (v >= supremum)
+        return false;
+
+    /* Now we can convert, these two conversions cannot be UB */
+    *absolute = v;
+    return *absolute == v;
+}
+#endif
+
+static void printRecursionLimit(CborStreamFunction stream, void *out)
+{
+    stream(out, "<nesting too deep, recursion stopped>");
+}
+
+static CborError hexDump(CborStreamFunction stream, void *out, const void *ptr, size_t n)
+{
+    const uint8_t *buffer = (const uint8_t *)ptr;
+    CborError err = CborNoError;
+    while (n-- && !err)
+        err = stream(out, "%02" PRIx8, *buffer++);
+
+    return err;
+}
+
+/* This function decodes buffer as UTF-8 and prints as escaped UTF-16.
+ * On UTF-8 decoding error, it returns CborErrorInvalidUtf8TextString */
+static CborError utf8EscapedDump(CborStreamFunction stream, void *out, const void *ptr, size_t n)
+{
+    const uint8_t *buffer = (const uint8_t *)ptr;
+    const uint8_t * const end = buffer + n;
+    CborError err = CborNoError;
+
+    while (buffer < end && !err) {
+        uint32_t uc = get_utf8(&buffer, end);
+        if (uc == ~0U)
+            return CborErrorInvalidUtf8TextString;
+
+        if (uc < 0x80) {
+            /* single-byte UTF-8 */
+            unsigned char escaped = (unsigned char)uc;
+            if (uc < 0x7f && uc >= 0x20 && uc != '\\' && uc != '"') {
+                err = stream(out, "%c", (char)uc);
+                continue;
+            }
+
+            /* print as an escape sequence */
+            switch (uc) {
+            case '"':
+            case '\\':
+                break;
+            case '\b':
+                escaped = 'b';
+                break;
+            case '\f':
+                escaped = 'f';
+                break;
+            case '\n':
+                escaped = 'n';
+                break;
+            case '\r':
+                escaped = 'r';
+                break;
+            case '\t':
+                escaped = 't';
+                break;
+            default:
+                goto print_utf16;
+            }
+            err = stream(out, "\\%c", escaped);
+            continue;
+        }
+
+        /* now print the sequence */
+        if (uc > 0xffffU) {
+            /* needs surrogate pairs */
+            err = stream(out, "\\u%04" PRIX32 "\\u%04" PRIX32,
+                         (uc >> 10) + 0xd7c0,    /* high surrogate */
+                         (uc % 0x0400) + 0xdc00);
+        } else {
+print_utf16:
+            /* no surrogate pair needed */
+            err = stream(out, "\\u%04" PRIX32, uc);
+        }
+    }
+    return err;
+}
+
+static const char *resolve_indicator(const CborValue *it, int flags)
+{
+    static const char indicators[8][3] = {
+        "_0", "_1", "_2", "_3",
+        "", "", "",             /* these are not possible */
+        "_"
+    };
+    const char *no_indicator = indicators[5];   /* empty string */
+    uint8_t additional_information;
+    uint8_t expected_information;
+    uint64_t value;
+    CborError err;
+
+    if (!read_bytes(it, &additional_information, 0, 1))
+        return NULL;    /* CborErrorUnexpectedEOF */
+
+    additional_information &= SmallValueMask;
+    if (additional_information < Value8Bit)
+        return no_indicator;
+
+    /* determine whether to show anything */
+    if ((flags & CborPrettyIndicateIndeterminateLength) &&
+            additional_information == IndefiniteLength)
+        return indicators[IndefiniteLength - Value8Bit];
+    if ((flags & CborPrettyIndicateOverlongNumbers) == 0)
+        return no_indicator;
+
+    err = extract_number_checked(it, &value, NULL);
+    if (err)
+        return NULL;    /* CborErrorUnexpectedEOF */
+
+    expected_information = Value8Bit - 1;
+    if (value >= Value8Bit)
+        ++expected_information;
+    if (value > 0xffU)
+        ++expected_information;
+    if (value > 0xffffU)
+        ++expected_information;
+    if (value > 0xffffffffU)
+        ++expected_information;
+    return expected_information == additional_information ?
+                no_indicator :
+                indicators[additional_information - Value8Bit];
+}
+
+static const char *get_indicator(const CborValue *it, int flags)
+{
+    return resolve_indicator(it, flags);
+}
+
+static CborError value_to_pretty(CborStreamFunction stream, void *out, CborValue *it, int flags, int recursionsLeft);
+static CborError container_to_pretty(CborStreamFunction stream, void *out, CborValue *it, CborType containerType,
+                                     int flags, int recursionsLeft)
+{
+    const char *comma = "";
+    CborError err = CborNoError;
+
+    if (!recursionsLeft) {
+        printRecursionLimit(stream, out);
+        return err;     /* do allow the dumping to continue */
+    }
+
+    while (!cbor_value_at_end(it) && !err) {
+        err = stream(out, "%s", comma);
+        comma = ", ";
+
+        if (!err)
+            err = value_to_pretty(stream, out, it, flags, recursionsLeft);
+
+        if (containerType == CborArrayType)
+            continue;
+
+        /* map: that was the key, so get the value */
+        if (!err)
+            err = stream(out, ": ");
+        if (!err)
+            err = value_to_pretty(stream, out, it, flags, recursionsLeft);
+    }
+    return err;
+}
+
+static CborError value_to_pretty(CborStreamFunction stream, void *out, CborValue *it, int flags, int recursionsLeft)
+{
+    CborError err = CborNoError;
+    CborType type = cbor_value_get_type(it);
+    switch (type) {
+    case CborArrayType:
+    case CborMapType: {
+        /* recursive type */
+        CborValue recursed;
+        const char *indicator = get_indicator(it, flags);
+        const char *space = *indicator ? " " : indicator;
+
+        err = stream(out, "%c%s%s", type == CborArrayType ? '[' : '{', indicator, space);
+        if (err)
+            return err;
+
+        err = cbor_value_enter_container(it, &recursed);
+        if (err) {
+            copy_current_position(it, &recursed);
+            return err;       /* parse error */
+        }
+        err = container_to_pretty(stream, out, &recursed, type, flags, recursionsLeft - 1);
+        if (err) {
+            copy_current_position(it, &recursed);
+            return err;       /* parse error */
+        }
+        err = cbor_value_leave_container(it, &recursed);
+        if (err)
+            return err;       /* parse error */
+
+        return stream(out, type == CborArrayType ? "]" : "}");
+    }
+
+    case CborIntegerType: {
+        uint64_t val;
+        cbor_value_get_raw_integer(it, &val);    /* can't fail */
+
+        if (cbor_value_is_unsigned_integer(it)) {
+            err = stream(out, "%" PRIu64, val);
+        } else {
+            /* CBOR stores the negative number X as -1 - X
+             * (that is, -1 is stored as 0, -2 as 1 and so forth) */
+            if (++val) {                /* unsigned overflow may happen */
+                err = stream(out, "-%" PRIu64, val);
+            } else {
+                /* overflown
+                 *   0xffff`ffff`ffff`ffff + 1 =
+                 * 0x1`0000`0000`0000`0000 = 18446744073709551616 (2^64) */
+                err = stream(out, "-18446744073709551616");
+            }
+        }
+        if (!err)
+            err = stream(out, "%s", get_indicator(it, flags));
+        break;
+    }
+
+    case CborByteStringType:
+    case CborTextStringType: {
+        size_t n = 0;
+        const void *ptr;
+        bool showingFragments = (flags & CborPrettyShowStringFragments) && !cbor_value_is_length_known(it);
+        const char *separator = "";
+        char close = '\'';
+        char open[3] = "h'";
+        const char *indicator = NULL;
+
+        if (type == CborTextStringType) {
+            close = open[0] = '"';
+            open[1] = '\0';
+        }
+
+        if (showingFragments)
+            err = stream(out, "(_ ");
+        else
+            err = stream(out, "%s", open);
+
+        if (!err)
+            err = cbor_value_begin_string_iteration(it);
+        while (!err) {
+            if (showingFragments || indicator == NULL) {
+                /* any iteration, except the second for a non-chunked string */
+                indicator = resolve_indicator(it, flags);
+            }
+
+            err = _cbor_value_get_string_chunk(it, &ptr, &n, it);
+            if (err == CborErrorNoMoreStringChunks) {
+                err = cbor_value_finish_string_iteration(it);
+                break;
+            }
+
+            if (!err && showingFragments)
+                err = stream(out, "%s%s", separator, open);
+            if (!err)
+                err = (type == CborByteStringType ?
+                           hexDump(stream, out, ptr, n) :
+                           utf8EscapedDump(stream, out, ptr, n));
+            if (!err && showingFragments) {
+                err = stream(out, "%c%s", close, indicator);
+                separator = ", ";
+            }
+        }
+
+        if (!err) {
+            if (showingFragments)
+                err = stream(out, ")");
+            else
+                err = stream(out, "%c%s", close, indicator);
+        }
+        return err;
+    }
+
+    case CborTagType: {
+        CborTag tag;
+        cbor_value_get_tag(it, &tag);       /* can't fail */
+        err = stream(out, "%" PRIu64 "%s(", tag, get_indicator(it, flags));
+        if (!err)
+            err = cbor_value_advance_fixed(it);
+        if (!err && recursionsLeft)
+            err = value_to_pretty(stream, out, it, flags, recursionsLeft - 1);
+        else if (!err)
+            printRecursionLimit(stream, out);
+        if (!err)
+            err = stream(out, ")");
+        return err;
+    }
+
+    case CborSimpleType: {
+        /* simple types can't fail and can't have overlong encoding */
+        uint8_t simple_type;
+        cbor_value_get_simple_type(it, &simple_type);
+        err = stream(out, "simple(%" PRIu8 ")", simple_type);
+        break;
+    }
+
+    case CborNullType:
+        err = stream(out, "null");
+        break;
+
+    case CborUndefinedType:
+        err = stream(out, "undefined");
+        break;
+
+    case CborBooleanType: {
+        bool val;
+        cbor_value_get_boolean(it, &val);       /* can't fail */
+        err = stream(out, val ? "true" : "false");
+        break;
+    }
+
+#ifndef CBOR_NO_FLOATING_POINT
+    case CborDoubleType: {
+        const char *suffix;
+        double val;
+        int r;
+        uint64_t ival;
+
+        if (false) {
+            float f;
+    case CborFloatType:
+            cbor_value_get_float(it, &f);
+            val = f;
+            suffix = flags & CborPrettyNumericEncodingIndicators ? "_2" : "f";
+        } else if (false) {
+            uint16_t f16;
+    case CborHalfFloatType:
+#ifndef CBOR_NO_HALF_FLOAT_TYPE
+            cbor_value_get_half_float(it, &f16);
+            val = decode_half(f16);
+            suffix = flags & CborPrettyNumericEncodingIndicators ? "_1" : "f16";
+#else
+            (void)f16;
+            err = CborErrorUnsupportedType;
+            break;
+#endif
+        } else {
+            cbor_value_get_double(it, &val);
+            suffix = "";
+        }
+
+        if ((flags & CborPrettyNumericEncodingIndicators) == 0) {
+            r = fpclassify(val);
+            if (r == FP_NAN || r == FP_INFINITE)
+                suffix = "";
+        }
+
+        if (convertToUint64(val, &ival)) {
+            /* this double value fits in a 64-bit integer, so show it as such
+             * (followed by a floating point suffix, to disambiguate) */
+            err = stream(out, "%s%" PRIu64 ".%s", val < 0 ? "-" : "", ival, suffix);
+        } else {
+            /* this number is definitely not a 64-bit integer */
+            err = stream(out, "%." DBL_DECIMAL_DIG_STR "g%s", val, suffix);
+        }
+        break;
+    }
+#else
+    case CborDoubleType:
+    case CborFloatType:
+    case CborHalfFloatType:
+        err = CborErrorUnsupportedType;
+        break;
+#endif /* !CBOR_NO_FLOATING_POINT */
+
+    case CborInvalidType:
+        err = stream(out, "invalid");
+        if (err)
+            return err;
+        return CborErrorUnknownType;
+    }
+
+    if (!err)
+        err = cbor_value_advance_fixed(it);
+    return err;
+}
+
+/**
+ * Converts the current CBOR type pointed by \a value to its textual
+ * representation and writes it to the stream by calling the \a streamFunction.
+ * If an error occurs, this function returns an error code similar to
+ * \ref CborParsing.
+ *
+ * The textual representation can be controlled by the \a flags parameter (see
+ * \ref CborPrettyFlags for more information).
+ *
+ * If no error ocurred, this function advances \a value to the next element.
+ * Often, concatenating the text representation of multiple elements can be
+ * done by appending a comma to the output stream in between calls to this
+ * function.
+ *
+ * The \a streamFunction function will be called with the \a token value as the
+ * first parameter and a printf-style format string as the second, with a variable
+ * number of further parameters.
+ *
+ * \sa cbor_value_to_pretty(), cbor_value_to_json_advance()
+ */
+CborError cbor_value_to_pretty_stream(CborStreamFunction streamFunction, void *token, CborValue *value, int flags)
+{
+    return value_to_pretty(streamFunction, token, value, flags, CBOR_PARSER_MAX_RECURSIONS);
+}
+
+/** @} */

lib/cbor/tinycbor/src/cborpretty_stdio.c

@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#include "cbor.h"
+#include <stdarg.h>
+#include <stdio.h>
+
+static CborError cbor_fprintf(void *out, const char *fmt, ...)
+{
+    int n;
+
+    va_list list;
+    va_start(list, fmt);
+    n = vfprintf((FILE *)out, fmt, list);
+    va_end(list);
+
+    return n < 0 ? CborErrorIO : CborNoError;
+}
+
+/**
+ * \fn CborError cbor_value_to_pretty(FILE *out, const CborValue *value)
+ *
+ * Converts the current CBOR type pointed to by \a value to its textual
+ * representation and writes it to the \a out stream. If an error occurs, this
+ * function returns an error code similar to CborParsing.
+ *
+ * \sa cbor_value_to_pretty_advance(), cbor_value_to_json_advance()
+ */
+
+/**
+ * Converts the current CBOR type pointed to by \a value to its textual
+ * representation and writes it to the \a out stream. If an error occurs, this
+ * function returns an error code similar to CborParsing.
+ *
+ * If no error ocurred, this function advances \a value to the next element.
+ * Often, concatenating the text representation of multiple elements can be
+ * done by appending a comma to the output stream in between calls to this
+ * function.
+ *
+ * \sa cbor_value_to_pretty(), cbor_value_to_pretty_stream(), cbor_value_to_json_advance()
+ */
+CborError cbor_value_to_pretty_advance(FILE *out, CborValue *value)
+{
+    return cbor_value_to_pretty_stream(cbor_fprintf, out, value, CborPrettyDefaultFlags);
+}
+
+/**
+ * Converts the current CBOR type pointed to by \a value to its textual
+ * representation and writes it to the \a out stream. If an error occurs, this
+ * function returns an error code similar to CborParsing.
+ *
+ * The textual representation can be controlled by the \a flags parameter (see
+ * CborPrettyFlags for more information).
+ *
+ * If no error ocurred, this function advances \a value to the next element.
+ * Often, concatenating the text representation of multiple elements can be
+ * done by appending a comma to the output stream in between calls to this
+ * function.
+ *
+ * \sa cbor_value_to_pretty_stream(), cbor_value_to_pretty(), cbor_value_to_json_advance()
+ */
+CborError cbor_value_to_pretty_advance_flags(FILE *out, CborValue *value, int flags)
+{
+    return cbor_value_to_pretty_stream(cbor_fprintf, out, value, flags);
+}
+

lib/cbor/tinycbor/src/cbortojson.c

@@ -0,0 +1,709 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#define _BSD_SOURCE 1
+#define _DEFAULT_SOURCE 1
+#define _GNU_SOURCE 1
+#define _POSIX_C_SOURCE 200809L
+#ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+#endif
+
+#include "cbor.h"
+#include "cborjson.h"
+#include "cborinternal_p.h"
+#include "compilersupport_p.h"
+#include "cborinternal_p.h"
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * \defgroup CborToJson Converting CBOR to JSON
+ * \brief Group of functions used to convert CBOR to JSON.
+ *
+ * This group contains two functions that can be used to convert a \ref
+ * CborValue object to an equivalent JSON representation. This module attempts
+ * to follow the recommendations from RFC 7049 section 4.1 "Converting from
+ * CBOR to JSON", though it has a few differences. They are noted below.
+ *
+ * These functions produce a "minified" JSON output, with no spacing,
+ * indentation or line breaks. If those are necessary, they need to be applied
+ * in a post-processing phase.
+ *
+ * Note that JSON cannot support all CBOR types with fidelity, so the
+ * conversion is usually lossy. For that reason, TinyCBOR supports adding a set
+ * of metadata JSON values that can be used by a JSON-to-CBOR converter to
+ * restore the original data types.
+ *
+ * The TinyCBOR library does not provide a way to convert from JSON
+ * representation back to encoded form. However, it provides a tool called
+ * \c json2cbor which can be used for that purpose. That tool supports the
+ * metadata format that these functions may produce.
+ *
+ * Either of the functions in this section will attempt to convert exactly one
+ * CborValue object to JSON. Those functions may return any error documented
+ * for the functions for CborParsing. In addition, if the C standard library
+ * stream functions return with error, the text conversion will return with
+ * error CborErrorIO.
+ *
+ * These functions also perform UTF-8 validation in CBOR text strings. If they
+ * encounter a sequence of bytes that is not permitted in UTF-8, they will return
+ * CborErrorInvalidUtf8TextString. That includes encoding of surrogate points
+ * in UTF-8.
+ *
+ * \warning The metadata produced by these functions is not guaranteed to
+ * remain stable. A future update of TinyCBOR may produce different output for
+ * the same input and parsers may be unable to handle it.
+ *
+ * \sa CborParsing, CborPretty, cbor_parser_init()
+ */
+
+/**
+ * \addtogroup CborToJson
+ * @{
+ * <h2 class="groupheader">Conversion limitations</h2>
+ *
+ * When converting from CBOR to JSON, there may be information loss. This
+ * section lists the possible scenarios.
+ *
+ * \par Number precision:
+ * ALL JSON numbers, due to its JavaScript heritage, are IEEE 754
+ * double-precision floating point. This means JSON is not capable of
+ * representing all integers numbers outside the range [-(2<sup>53</sup>)+1,
+ * 2<sup>53</sup>-1] and is not capable of representing NaN or infinite. If the
+ * CBOR data contains a number outside the valid range, the conversion will
+ * lose precision. If the input was NaN or infinite, the result of the
+ * conversion will be the JSON null value. In addition, the distinction between
+ * half-, single- and double-precision is lost.
+ *
+ * \par
+ * If enabled, the original value and original type are stored in the metadata.
+ *
+ * \par Non-native types:
+ * CBOR's type system is richer than JSON's, which means some data values
+ * cannot be represented when converted to JSON. The conversion silently turns
+ * them into strings: CBOR simple types become "simple(nn)" where \c nn is the
+ * simple type's value, with the exception of CBOR undefined, which becomes
+ * "undefined", while CBOR byte strings are converted to an Base16, Base64, or
+ * Base64url encoding
+ *
+ * \par
+ * If enabled, the original type is stored in the metadata.
+ *
+ * \par Presence of tags:
+ * JSON has no support for tagged values, so by default tags are dropped when
+ * converting to JSON. However, if the CborConvertObeyByteStringTags option is
+ * active (default), then certain known tags are honored and are used to format
+ * the conversion of the tagged byte string to JSON.
+ *
+ * \par
+ * If the CborConvertTagsToObjects option is active, then the tag and the
+ * tagged value are converted to a JSON object. Otherwise, if enabled, the
+ * last (innermost) tag is stored in the metadata.
+ *
+ * \par Non-string keys in maps:
+ * JSON requires all Object keys to be strings, while CBOR does not. By
+ * default, if a non-string key is found, the conversion fails with error
+ * CborErrorJsonObjectKeyNotString. If the CborConvertStringifyMapKeys option
+ * is active, then the conversion attempts to create a string representation
+ * using CborPretty. Note that the \c json2cbor tool is not able to parse this
+ * back to the original form.
+ *
+ * \par Duplicate keys in maps:
+ * Neither JSON nor CBOR allow duplicated keys, but current TinyCBOR does not
+ * validate that this is the case. If there are duplicated keys in the input,
+ * they will be repeated in the output, which many JSON tools may flag as
+ * invalid. In addition to that, if the CborConvertStringifyMapKeys option is
+ * active, it is possible that a non-string key in a CBOR map will be converted
+ * to a string form that is identical to another key.
+ *
+ * \par
+ * When metadata support is active, the conversion will add extra key-value
+ * pairs to the JSON output so it can store the metadata. It is possible that
+ * the keys for the metadata clash with existing keys in the JSON map.
+ */
+
+extern FILE *open_memstream(char **bufptr, size_t *sizeptr);
+
+enum ConversionStatusFlags {
+    TypeWasNotNative            = 0x100,    /* anything but strings, boolean, null, arrays and maps */
+    TypeWasTagged               = 0x200,
+    NumberPrecisionWasLost      = 0x400,
+    NumberWasNaN                = 0x800,
+    NumberWasInfinite           = 0x1000,
+    NumberWasNegative           = 0x2000,   /* only used with NumberWasInifite or NumberWasTooBig */
+
+    FinalTypeMask               = 0xff
+};
+
+typedef struct ConversionStatus {
+    CborTag lastTag;
+    uint64_t originalNumber;
+    int flags;
+} ConversionStatus;
+
+static CborError value_to_json(FILE *out, CborValue *it, int flags, CborType type, ConversionStatus *status);
+
+static CborError dump_bytestring_base16(char **result, CborValue *it)
+{
+    static const char characters[] = "0123456789abcdef";
+    size_t i;
+    size_t n = 0;
+    uint8_t *buffer;
+    CborError err = cbor_value_calculate_string_length(it, &n);
+    if (err)
+        return err;
+
+    /* a Base16 (hex) output is twice as big as our buffer */
+    buffer = (uint8_t *)malloc(n * 2 + 1);
+    if (buffer == NULL)
+        /* out of memory */
+        return CborErrorOutOfMemory;
+
+    *result = (char *)buffer;
+
+    /* let cbor_value_copy_byte_string know we have an extra byte for the terminating NUL */
+    ++n;
+    err = cbor_value_copy_byte_string(it, buffer + n - 1, &n, it);
+    cbor_assert(err == CborNoError);
+
+    for (i = 0; i < n; ++i) {
+        uint8_t byte = buffer[n + i];
+        buffer[2*i]     = characters[byte >> 4];
+        buffer[2*i + 1] = characters[byte & 0xf];
+    }
+    return CborNoError;
+}
+
+static CborError generic_dump_base64(char **result, CborValue *it, const char alphabet[65])
+{
+    size_t n = 0, i;
+    uint8_t *buffer, *out, *in;
+    CborError err = cbor_value_calculate_string_length(it, &n);
+    if (err)
+        return err;
+
+    /* a Base64 output (untruncated) has 4 bytes for every 3 in the input */
+    size_t len = (n + 5) / 3 * 4;
+    buffer = (uint8_t *)malloc(len + 1);
+    if (buffer == NULL)
+        /* out of memory */
+        return CborErrorOutOfMemory;
+
+    out = buffer;
+    *result = (char *)buffer;
+
+    /* we read our byte string at the tail end of the buffer
+     * so we can do an in-place conversion while iterating forwards */
+    in = buffer + len - n;
+
+    /* let cbor_value_copy_byte_string know we have an extra byte for the terminating NUL */
+    ++n;
+    err = cbor_value_copy_byte_string(it, in, &n, it);
+    cbor_assert(err == CborNoError);
+
+    uint_least32_t val = 0;
+    for (i = 0; n - i >= 3; i += 3) {
+        /* read 3 bytes x 8 bits = 24 bits */
+        if (false) {
+#ifdef __GNUC__
+        } else if (i) {
+            __builtin_memcpy(&val, in + i - 1, sizeof(val));
+            val = cbor_ntohl(val);
+#endif
+        } else {
+            val = (in[i] << 16) | (in[i + 1] << 8) | in[i + 2];
+        }
+
+        /* write 4 chars x 6 bits = 24 bits */
+        *out++ = alphabet[(val >> 18) & 0x3f];
+        *out++ = alphabet[(val >> 12) & 0x3f];
+        *out++ = alphabet[(val >> 6) & 0x3f];
+        *out++ = alphabet[val & 0x3f];
+    }
+
+    /* maybe 1 or 2 bytes left */
+    if (n - i) {
+        /* we can read in[i + 1] even if it's past the end of the string because
+         * we know (by construction) that it's a NUL byte */
+#ifdef __GNUC__
+        uint16_t val16;
+        __builtin_memcpy(&val16, in + i, sizeof(val16));
+        val = cbor_ntohs(val16);
+#else
+        val = (in[i] << 8) | in[i + 1];
+#endif
+        val <<= 8;
+
+        /* the 65th character in the alphabet is our filler: either '=' or '\0' */
+        out[4] = '\0';
+        out[3] = alphabet[64];
+        if (n - i == 2) {
+            /* write the third char in 3 chars x 6 bits = 18 bits */
+            out[2] = alphabet[(val >> 6) & 0x3f];
+        } else {
+            out[2] = alphabet[64];  /* filler */
+        }
+        out[1] = alphabet[(val >> 12) & 0x3f];
+        out[0] = alphabet[(val >> 18) & 0x3f];
+    } else {
+        out[0] = '\0';
+    }
+
+    return CborNoError;
+}
+
+static CborError dump_bytestring_base64(char **result, CborValue *it)
+{
+    static const char alphabet[] = "ABCDEFGH" "IJKLMNOP" "QRSTUVWX" "YZabcdef"
+                                   "ghijklmn" "opqrstuv" "wxyz0123" "456789+/" "=";
+    return generic_dump_base64(result, it, alphabet);
+}
+
+static CborError dump_bytestring_base64url(char **result, CborValue *it)
+{
+    static const char alphabet[] = "ABCDEFGH" "IJKLMNOP" "QRSTUVWX" "YZabcdef"
+                                   "ghijklmn" "opqrstuv" "wxyz0123" "456789-_";
+    return generic_dump_base64(result, it, alphabet);
+}
+
+static CborError add_value_metadata(FILE *out, CborType type, const ConversionStatus *status)
+{
+    int flags = status->flags;
+    if (flags & TypeWasTagged) {
+        /* extract the tagged type, which may be JSON native */
+        type = flags & FinalTypeMask;
+        flags &= ~(FinalTypeMask | TypeWasTagged);
+
+        if (fprintf(out, "\"tag\":\"%" PRIu64 "\"%s", status->lastTag,
+                    flags & ~TypeWasTagged ? "," : "") < 0)
+            return CborErrorIO;
+    }
+
+    if (!flags)
+        return CborNoError;
+
+    /* print at least the type */
+    if (fprintf(out, "\"t\":%d", type) < 0)
+        return CborErrorIO;
+
+    if (flags & NumberWasNaN)
+        if (fprintf(out, ",\"v\":\"nan\"") < 0)
+            return CborErrorIO;
+    if (flags & NumberWasInfinite)
+        if (fprintf(out, ",\"v\":\"%sinf\"", flags & NumberWasNegative ? "-" : "") < 0)
+            return CborErrorIO;
+    if (flags & NumberPrecisionWasLost)
+        if (fprintf(out, ",\"v\":\"%c%" PRIx64 "\"", flags & NumberWasNegative ? '-' : '+',
+                    status->originalNumber) < 0)
+            return CborErrorIO;
+    if (type == CborSimpleType)
+        if (fprintf(out, ",\"v\":%d", (int)status->originalNumber) < 0)
+            return CborErrorIO;
+    return CborNoError;
+}
+
+static CborError find_tagged_type(CborValue *it, CborTag *tag, CborType *type)
+{
+    CborError err = CborNoError;
+    *type = cbor_value_get_type(it);
+    while (*type == CborTagType) {
+        cbor_value_get_tag(it, tag);    /* can't fail */
+        err = cbor_value_advance_fixed(it);
+        if (err)
+            return err;
+
+        *type = cbor_value_get_type(it);
+    }
+    return err;
+}
+
+static CborError tagged_value_to_json(FILE *out, CborValue *it, int flags, ConversionStatus *status)
+{
+    CborTag tag;
+    CborError err;
+
+    if (flags & CborConvertTagsToObjects) {
+        cbor_value_get_tag(it, &tag);       /* can't fail */
+        err = cbor_value_advance_fixed(it);
+        if (err)
+            return err;
+
+        if (fprintf(out, "{\"tag%" PRIu64 "\":", tag) < 0)
+            return CborErrorIO;
+
+        CborType type = cbor_value_get_type(it);
+        err = value_to_json(out, it, flags, type, status);
+        if (err)
+            return err;
+        if (flags & CborConvertAddMetadata && status->flags) {
+            if (fprintf(out, ",\"tag%" PRIu64 "$cbor\":{", tag) < 0 ||
+                    add_value_metadata(out, type, status) != CborNoError ||
+                    fputc('}', out) < 0)
+                return CborErrorIO;
+        }
+        if (fputc('}', out) < 0)
+            return CborErrorIO;
+        status->flags = TypeWasNotNative | CborTagType;
+        return CborNoError;
+    }
+
+    CborType type;
+    err = find_tagged_type(it, &status->lastTag, &type);
+    if (err)
+        return err;
+    tag = status->lastTag;
+
+    /* special handling of byte strings? */
+    if (type == CborByteStringType && (flags & CborConvertByteStringsToBase64Url) == 0 &&
+            (tag == CborNegativeBignumTag || tag == CborExpectedBase16Tag || tag == CborExpectedBase64Tag)) {
+        char *str;
+        const char *pre = "";
+
+        if (tag == CborNegativeBignumTag) {
+            pre = "~";
+            err = dump_bytestring_base64url(&str, it);
+        } else if (tag == CborExpectedBase64Tag) {
+            err = dump_bytestring_base64(&str, it);
+        } else { /* tag == CborExpectedBase16Tag */
+            err = dump_bytestring_base16(&str, it);
+        }
+        if (err)
+            return err;
+        err = fprintf(out, "\"%s%s\"", pre, str) < 0 ? CborErrorIO : CborNoError;
+        free(str);
+        status->flags = TypeWasNotNative | TypeWasTagged | CborByteStringType;
+        return err;
+    }
+
+    /* no special handling */
+    err = value_to_json(out, it, flags, type, status);
+    status->flags |= TypeWasTagged | type;
+    return err;
+}
+
+static CborError stringify_map_key(char **key, CborValue *it, int flags, CborType type)
+{
+    (void)flags;    /* unused */
+    (void)type;     /* unused */
+#ifdef WITHOUT_OPEN_MEMSTREAM
+    (void)key;      /* unused */
+    (void)it;       /* unused */
+    return CborErrorJsonNotImplemented;
+#else
+    size_t size;
+
+    FILE *memstream = open_memstream(key, &size);
+    if (memstream == NULL)
+        return CborErrorOutOfMemory;        /* could also be EMFILE, but it's unlikely */
+    CborError err = cbor_value_to_pretty_advance(memstream, it);
+
+    if (unlikely(fclose(memstream) < 0 || *key == NULL))
+        return CborErrorInternalError;
+    return err;
+#endif
+}
+
+static CborError array_to_json(FILE *out, CborValue *it, int flags, ConversionStatus *status)
+{
+    const char *comma = "";
+    while (!cbor_value_at_end(it)) {
+        if (fprintf(out, "%s", comma) < 0)
+            return CborErrorIO;
+        comma = ",";
+
+        CborError err = value_to_json(out, it, flags, cbor_value_get_type(it), status);
+        if (err)
+            return err;
+    }
+    return CborNoError;
+}
+
+static CborError map_to_json(FILE *out, CborValue *it, int flags, ConversionStatus *status)
+{
+    const char *comma = "";
+    CborError err;
+    while (!cbor_value_at_end(it)) {
+        char *key;
+        if (fprintf(out, "%s", comma) < 0)
+            return CborErrorIO;
+        comma = ",";
+
+        CborType keyType = cbor_value_get_type(it);
+        if (likely(keyType == CborTextStringType)) {
+            size_t n = 0;
+            err = cbor_value_dup_text_string(it, &key, &n, it);
+        } else if (flags & CborConvertStringifyMapKeys) {
+            err = stringify_map_key(&key, it, flags, keyType);
+        } else {
+            return CborErrorJsonObjectKeyNotString;
+        }
+        if (err)
+            return err;
+
+        /* first, print the key */
+        if (fprintf(out, "\"%s\":", key) < 0) {
+            free(key);
+            return CborErrorIO;
+        }
+
+        /* then, print the value */
+        CborType valueType = cbor_value_get_type(it);
+        err = value_to_json(out, it, flags, valueType, status);
+
+        /* finally, print any metadata we may have */
+        if (flags & CborConvertAddMetadata) {
+            if (!err && keyType != CborTextStringType) {
+                if (fprintf(out, ",\"%s$keycbordump\":true", key) < 0)
+                    err = CborErrorIO;
+            }
+            if (!err && status->flags) {
+                if (fprintf(out, ",\"%s$cbor\":{", key) < 0 ||
+                        add_value_metadata(out, valueType, status) != CborNoError ||
+                        fputc('}', out) < 0)
+                    err = CborErrorIO;
+            }
+        }
+
+        free(key);
+        if (err)
+            return err;
+    }
+    return CborNoError;
+}
+
+static CborError value_to_json(FILE *out, CborValue *it, int flags, CborType type, ConversionStatus *status)
+{
+    CborError err;
+    status->flags = 0;
+
+    switch (type) {
+    case CborArrayType:
+    case CborMapType: {
+        /* recursive type */
+        CborValue recursed;
+        err = cbor_value_enter_container(it, &recursed);
+        if (err) {
+            copy_current_position(it, &recursed);
+            return err;       /* parse error */
+        }
+        if (fputc(type == CborArrayType ? '[' : '{', out) < 0)
+            return CborErrorIO;
+
+        err = (type == CborArrayType) ?
+                  array_to_json(out, &recursed, flags, status) :
+                  map_to_json(out, &recursed, flags, status);
+        if (err) {
+            copy_current_position(it, &recursed);
+            return err;       /* parse error */
+        }
+
+        if (fputc(type == CborArrayType ? ']' : '}', out) < 0)
+            return CborErrorIO;
+        err = cbor_value_leave_container(it, &recursed);
+        if (err)
+            return err;       /* parse error */
+
+        status->flags = 0;    /* reset, there are never conversion errors for us */
+        return CborNoError;
+    }
+
+    case CborIntegerType: {
+        double num;     /* JS numbers are IEEE double precision */
+        uint64_t val;
+        cbor_value_get_raw_integer(it, &val);    /* can't fail */
+        num = (double)val;
+
+        if (cbor_value_is_negative_integer(it)) {
+            num = -num - 1;                     /* convert to negative */
+            if ((uint64_t)(-num - 1) != val) {
+                status->flags = NumberPrecisionWasLost | NumberWasNegative;
+                status->originalNumber = val;
+            }
+        } else {
+            if ((uint64_t)num != val) {
+                status->flags = NumberPrecisionWasLost;
+                status->originalNumber = val;
+            }
+        }
+        if (fprintf(out, "%.0f", num) < 0)  /* this number has no fraction, so no decimal points please */
+            return CborErrorIO;
+        break;
+    }
+
+    case CborByteStringType:
+    case CborTextStringType: {
+        char *str;
+        if (type == CborByteStringType) {
+            err = dump_bytestring_base64url(&str, it);
+            status->flags = TypeWasNotNative;
+        } else {
+            size_t n = 0;
+            err = cbor_value_dup_text_string(it, &str, &n, it);
+        }
+        if (err)
+            return err;
+        err = (fprintf(out, "\"%s\"", str) < 0) ? CborErrorIO : CborNoError;
+        free(str);
+        return err;
+    }
+
+    case CborTagType:
+        return tagged_value_to_json(out, it, flags, status);
+
+    case CborSimpleType: {
+        uint8_t simple_type;
+        cbor_value_get_simple_type(it, &simple_type);  /* can't fail */
+        status->flags = TypeWasNotNative;
+        status->originalNumber = simple_type;
+        if (fprintf(out, "\"simple(%" PRIu8 ")\"", simple_type) < 0)
+            return CborErrorIO;
+        break;
+    }
+
+    case CborNullType:
+        if (fprintf(out, "null") < 0)
+            return CborErrorIO;
+        break;
+
+    case CborUndefinedType:
+        status->flags = TypeWasNotNative;
+        if (fprintf(out, "\"undefined\"") < 0)
+            return CborErrorIO;
+        break;
+
+    case CborBooleanType: {
+        bool val;
+        cbor_value_get_boolean(it, &val);       /* can't fail */
+        if (fprintf(out, val ? "true" : "false") < 0)
+            return CborErrorIO;
+        break;
+    }
+
+#ifndef CBOR_NO_FLOATING_POINT
+    case CborDoubleType: {
+        double val;
+        if (false) {
+            float f;
+    case CborFloatType:
+            status->flags = TypeWasNotNative;
+            cbor_value_get_float(it, &f);
+            val = f;
+        } else if (false) {
+            uint16_t f16;
+    case CborHalfFloatType:
+#  ifndef CBOR_NO_HALF_FLOAT_TYPE
+            status->flags = TypeWasNotNative;
+            cbor_value_get_half_float(it, &f16);
+            val = decode_half(f16);
+#  else
+            (void)f16;
+            err = CborErrorUnsupportedType;
+            break;
+#  endif
+        } else {
+            cbor_value_get_double(it, &val);
+        }
+
+        int r = fpclassify(val);
+        if (r == FP_NAN || r == FP_INFINITE) {
+            if (fprintf(out, "null") < 0)
+                return CborErrorIO;
+            status->flags |= r == FP_NAN ? NumberWasNaN :
+                                           NumberWasInfinite | (val < 0 ? NumberWasNegative : 0);
+        } else {
+            uint64_t ival = (uint64_t)fabs(val);
+            if ((double)ival == fabs(val)) {
+                /* print as integer so we get the full precision */
+                r = fprintf(out, "%s%" PRIu64, val < 0 ? "-" : "", ival);
+                status->flags |= TypeWasNotNative;   /* mark this integer number as a double */
+            } else {
+                /* this number is definitely not a 64-bit integer */
+                r = fprintf(out, "%." DBL_DECIMAL_DIG_STR "g", val);
+            }
+            if (r < 0)
+                return CborErrorIO;
+        }
+        break;
+    }
+#else
+    case CborDoubleType:
+    case CborFloatType:
+    case CborHalfFloatType:
+        err = CborErrorUnsupportedType;
+        break;
+#endif /* !CBOR_NO_FLOATING_POINT */
+
+    case CborInvalidType:
+        return CborErrorUnknownType;
+    }
+
+    return cbor_value_advance_fixed(it);
+}
+
+/**
+ * \enum CborToJsonFlags
+ * The CborToJsonFlags enum contains flags that control the conversion of CBOR to JSON.
+ *
+ * \value CborConvertAddMetadata        Adds metadata to facilitate restoration of the original CBOR data.
+ * \value CborConvertTagsToObjects      Converts CBOR tags to JSON objects
+ * \value CborConvertIgnoreTags         (default) Ignore CBOR tags, except for byte strings
+ * \value CborConvertObeyByteStringTags (default) Honor formatting of CBOR byte strings if so tagged
+ * \value CborConvertByteStringsToBase64Url Force the conversion of all CBOR byte strings to Base64url encoding, despite any tags
+ * \value CborConvertRequireMapStringKeys (default) Require CBOR map keys to be strings, failing the conversion if they are not
+ * \value CborConvertStringifyMapKeys   Convert non-string keys in CBOR maps to a string form
+ * \value CborConvertDefaultFlags       Default conversion flags.
+ */
+
+/**
+ * \fn CborError cbor_value_to_json(FILE *out, const CborValue *value, int flags)
+ *
+ * Converts the current CBOR type pointed to by \a value to JSON and writes that
+ * to the \a out stream. If an error occurs, this function returns an error
+ * code similar to CborParsing. The \a flags parameter indicates one or more of
+ * the flags from CborToJsonFlags that control the conversion.
+ *
+ * \sa cbor_value_to_json_advance(), cbor_value_to_pretty()
+ */
+
+/**
+ * Converts the current CBOR type pointed to by \a value to JSON and writes that
+ * to the \a out stream. If an error occurs, this function returns an error
+ * code similar to CborParsing. The \a flags parameter indicates one or more of
+ * the flags from CborToJsonFlags that control the conversion.
+ *
+ * If no error ocurred, this function advances \a value to the next element.
+ *
+ * \sa cbor_value_to_json(), cbor_value_to_pretty_advance()
+ */
+CborError cbor_value_to_json_advance(FILE *out, CborValue *value, int flags)
+{
+    ConversionStatus status;
+    return value_to_json(out, value, flags, cbor_value_get_type(value), &status);
+}
+
+/** @} */

lib/cbor/tinycbor/src/cborvalidation.c

@@ -0,0 +1,657 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#define _BSD_SOURCE 1
+#define _DEFAULT_SOURCE 1
+#ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+#endif
+
+#include "cbor.h"
+#include "cborinternal_p.h"
+#include "compilersupport_p.h"
+#include "utf8_p.h"
+
+#include <string.h>
+
+#ifndef CBOR_NO_FLOATING_POINT
+#  include <float.h>
+#  include <math.h>
+#endif
+
+
+#ifndef CBOR_PARSER_MAX_RECURSIONS
+#  define CBOR_PARSER_MAX_RECURSIONS 1024
+#endif
+
+/**
+ * \addtogroup CborParsing
+ * @{
+ */
+
+/**
+ * \enum CborValidationFlags
+ * The CborValidationFlags enum contains flags that control the validation of a
+ * CBOR stream.
+ *
+ * \value CborValidateBasic         Validates only the syntactic correctedness of the stream.
+ * \value CborValidateCanonical     Validates that the stream is in canonical format, according to
+ *                                  RFC 7049 section 3.9.
+ * \value CborValidateStrictMode    Performs strict validation, according to RFC 7049 section 3.10.
+ * \value CborValidateStrictest     Attempt to perform the strictest validation we know of.
+ *
+ * \value CborValidateShortestIntegrals     (Canonical) Validate that integral numbers and lengths are
+ *                                          enconded in their shortest form possible.
+ * \value CborValidateShortestFloatingPoint (Canonical) Validate that floating-point numbers are encoded
+ *                                          in their shortest form possible.
+ * \value CborValidateShortestNumbers       (Canonical) Validate both integral and floating-point numbers
+ *                                          are in their shortest form possible.
+ * \value CborValidateNoIndeterminateLength (Canonical) Validate that no string, array or map uses
+ *                                          indeterminate length encoding.
+ * \value CborValidateMapIsSorted           (Canonical & Strict mode) Validate that map keys appear in
+ *                                          sorted order.
+ * \value CborValidateMapKeysAreUnique      (Strict mode) Validate that map keys are unique.
+ * \value CborValidateTagUse                (Strict mode) Validate that known tags are used with the
+ *                                          correct types. This does not validate that the content of
+ *                                          those types is syntactically correct. For example, this
+ *                                          option validates that tag 1 (DateTimeString) is used with
+ *                                          a Text String, but it does not validate that the string is
+ *                                          a valid date/time representation.
+ * \value CborValidateUtf8                  (Strict mode) Validate that text strings are appropriately
+ *                                          encoded in UTF-8.
+ * \value CborValidateMapKeysAreString      Validate that all map keys are text strings.
+ * \value CborValidateNoUndefined           Validate that no elements of type "undefined" are present.
+ * \value CborValidateNoTags                Validate that no tags are used.
+ * \value CborValidateFiniteFloatingPoint   Validate that all floating point numbers are finite (no NaN or
+ *                                          infinities are allowed).
+ * \value CborValidateCompleteData          Validate that the stream is complete and there is no more data
+ *                                          in the buffer.
+ * \value CborValidateNoUnknownSimpleTypesSA Validate that all Standards Action simple types are registered
+ *                                          with IANA.
+ * \value CborValidateNoUnknownSimpleTypes  Validate that all simple types used are registered with IANA.
+ * \value CborValidateNoUnknownTagsSA       Validate that all Standard Actions tags are registered with IANA.
+ * \value CborValidateNoUnknownTagsSR       Validate that all Standard Actions and Specification Required tags
+ *                                          are registered with IANA (see below for limitations).
+ * \value CborValidateNoUnkonwnTags         Validate that all tags are registered with IANA
+ *                                          (see below for limitations).
+ *
+ * \par Simple type registry
+ * The CBOR specification requires that registration for use of the first 19
+ * simple types must be done by way of Standards Action. The rest of the simple
+ * types only require a specification. The official list can be obtained from
+ *  https://www.iana.org/assignments/cbor-simple-values/cbor-simple-values.xhtml.
+ *
+ * \par
+ * There are no registered simple types recognized by this release of TinyCBOR
+ * (beyond those defined by RFC 7049).
+ *
+ * \par Tag registry
+ * The CBOR specification requires that registration for use of the first 23
+ * tags must be done by way of Standards Action. The next up to tag 255 only
+ * require a specification. Finally, all other tags can be registered on a
+ * first-come-first-serve basis. The official list can be ontained from
+ *  https://www.iana.org/assignments/cbor-tags/cbor-tags.xhtml.
+ *
+ * \par
+ * Given the variability of this list, TinyCBOR cannot recognize all tags
+ * registered with IANA. Instead, the implementation only recognizes tags
+ * that are backed by an RFC.
+ *
+ * \par
+ * These are the tags known to the current TinyCBOR release:
+<table>
+  <tr>
+    <th>Tag</th>
+    <th>Data Item</th>
+    <th>Semantics</th>
+  </tr>
+  <tr>
+    <td>0</td>
+    <td>UTF-8 text string</td>
+    <td>Standard date/time string</td>
+  </tr>
+  <tr>
+    <td>1</td>
+    <td>integer</td>
+    <td>Epoch-based date/time</td>
+  </tr>
+  <tr>
+    <td>2</td>
+    <td>byte string</td>
+    <td>Positive bignum</td>
+  </tr>
+  <tr>
+    <td>3</td>
+    <td>byte string</td>
+    <td>Negative bignum</td>
+  </tr>
+  <tr>
+    <td>4</td>
+    <td>array</td>
+    <td>Decimal fraction</td>
+  </tr>
+  <tr>
+    <td>5</td>
+    <td>array</td>
+    <td>Bigfloat</td>
+  </tr>
+  <tr>
+    <td>16</td>
+    <td>array</td>
+    <td>COSE Single Recipient Encrypted Data Object (RFC 8152)</td>
+  </tr>
+  <tr>
+    <td>17</td>
+    <td>array</td>
+    <td>COSE Mac w/o Recipients Object (RFC 8152)</td>
+  </tr>
+  <tr>
+    <td>18</td>
+    <td>array</td>
+    <td>COSE Single Signer Data Object (RFC 8162)</td>
+  </tr>
+  <tr>
+    <td>21</td>
+    <td>byte string, array, map</td>
+    <td>Expected conversion to base64url encoding</td>
+  </tr>
+  <tr>
+    <td>22</td>
+    <td>byte string, array, map</td>
+    <td>Expected conversion to base64 encoding</td>
+  </tr>
+  <tr>
+    <td>23</td>
+    <td>byte string, array, map</td>
+    <td>Expected conversion to base16 encoding</td>
+  </tr>
+  <tr>
+    <td>24</td>
+    <td>byte string</td>
+    <td>Encoded CBOR data item</td>
+  </tr>
+  <tr>
+    <td>32</td>
+    <td>UTF-8 text string</td>
+    <td>URI</td>
+  </tr>
+  <tr>
+    <td>33</td>
+    <td>UTF-8 text string</td>
+    <td>base64url</td>
+  </tr>
+  <tr>
+    <td>34</td>
+    <td>UTF-8 text string</td>
+    <td>base64</td>
+  </tr>
+  <tr>
+    <td>35</td>
+    <td>UTF-8 text string</td>
+    <td>Regular expression</td>
+  </tr>
+  <tr>
+    <td>36</td>
+    <td>UTF-8 text string</td>
+    <td>MIME message</td>
+  </tr>
+  <tr>
+    <td>96</td>
+    <td>array</td>
+    <td>COSE Encrypted Data Object (RFC 8152)</td>
+  </tr>
+  <tr>
+    <td>97</td>
+    <td>array</td>
+    <td>COSE MACed Data Object (RFC 8152)</td>
+  </tr>
+  <tr>
+    <td>98</td>
+    <td>array</td>
+    <td>COSE Signed Data Object (RFC 8152)</td>
+  </tr>
+  <tr>
+    <td>55799</td>
+    <td>any</td>
+    <td>Self-describe CBOR</td>
+  </tr>
+</table>
+ */
+
+struct KnownTagData { uint32_t tag; uint32_t types; };
+static const struct KnownTagData knownTagData[] = {
+    { 0, (uint32_t)CborTextStringType },
+    { 1, (uint32_t)(CborIntegerType+1) },
+    { 2, (uint32_t)CborByteStringType },
+    { 3, (uint32_t)CborByteStringType },
+    { 4, (uint32_t)CborArrayType },
+    { 5, (uint32_t)CborArrayType },
+    { 16, (uint32_t)CborArrayType },
+    { 17, (uint32_t)CborArrayType },
+    { 18, (uint32_t)CborArrayType },
+    { 21, (uint32_t)CborByteStringType | ((uint32_t)CborArrayType << 8) | ((uint32_t)CborMapType << 16) },
+    { 22, (uint32_t)CborByteStringType | ((uint32_t)CborArrayType << 8) | ((uint32_t)CborMapType << 16) },
+    { 23, (uint32_t)CborByteStringType | ((uint32_t)CborArrayType << 8) | ((uint32_t)CborMapType << 16) },
+    { 24, (uint32_t)CborByteStringType },
+    { 32, (uint32_t)CborTextStringType },
+    { 33, (uint32_t)CborTextStringType },
+    { 34, (uint32_t)CborTextStringType },
+    { 35, (uint32_t)CborTextStringType },
+    { 36, (uint32_t)CborTextStringType },
+    { 96, (uint32_t)CborArrayType },
+    { 97, (uint32_t)CborArrayType },
+    { 98, (uint32_t)CborArrayType },
+    { 55799, 0U }
+};
+
+static CborError validate_value(CborValue *it, uint32_t flags, int recursionLeft);
+
+static inline CborError validate_utf8_string(const void *ptr, size_t n)
+{
+    const uint8_t *buffer = (const uint8_t *)ptr;
+    const uint8_t * const end = buffer + n;
+    while (buffer < end) {
+        uint32_t uc = get_utf8(&buffer, end);
+        if (uc == ~0U)
+            return CborErrorInvalidUtf8TextString;
+    }
+    return CborNoError;
+}
+
+static inline CborError validate_simple_type(uint8_t simple_type, uint32_t flags)
+{
+    /* At current time, all known simple types are those from RFC 7049,
+     * which are parsed by the parser into different CBOR types.
+     * That means that if we've got here, the type is unknown */
+    if (simple_type < 32)
+        return (flags & CborValidateNoUnknownSimpleTypesSA) ? CborErrorUnknownSimpleType : CborNoError;
+    return (flags & CborValidateNoUnknownSimpleTypes) == CborValidateNoUnknownSimpleTypes ?
+                CborErrorUnknownSimpleType : CborNoError;
+}
+
+static inline CborError validate_number(const CborValue *it, CborType type, uint32_t flags)
+{
+    CborError err = CborNoError;
+    size_t bytesUsed, bytesNeeded;
+    uint64_t value;
+
+    if ((flags & CborValidateShortestIntegrals) == 0)
+        return err;
+    if (type >= CborHalfFloatType && type <= CborDoubleType)
+        return err;     /* checked elsewhere */
+
+    err = extract_number_checked(it, &value, &bytesUsed);
+    if (err)
+        return err;
+
+    bytesNeeded = 0;
+    if (value >= Value8Bit)
+        ++bytesNeeded;
+    if (value > 0xffU)
+        ++bytesNeeded;
+    if (value > 0xffffU)
+        bytesNeeded += 2;
+    if (value > 0xffffffffU)
+        bytesNeeded += 4;
+    if (bytesNeeded < bytesUsed)
+        return CborErrorOverlongEncoding;
+    return CborNoError;
+}
+
+static inline CborError validate_tag(CborValue *it, CborTag tag, uint32_t flags, int recursionLeft)
+{
+    CborType type = cbor_value_get_type(it);
+    const size_t knownTagCount = sizeof(knownTagData) / sizeof(knownTagData[0]);
+    const struct KnownTagData *tagData = knownTagData;
+    const struct KnownTagData * const knownTagDataEnd = knownTagData + knownTagCount;
+
+    if (!recursionLeft)
+        return CborErrorNestingTooDeep;
+    if (flags & CborValidateNoTags)
+        return CborErrorExcludedType;
+
+    /* find the tag data, if any */
+    for ( ; tagData != knownTagDataEnd; ++tagData) {
+        if (tagData->tag < tag)
+            continue;
+        if (tagData->tag > tag)
+            tagData = NULL;
+        break;
+    }
+    if (tagData == knownTagDataEnd)
+        tagData = NULL;
+
+    if (flags & CborValidateNoUnknownTags && !tagData) {
+        /* tag not found */
+        if (flags & CborValidateNoUnknownTagsSA && tag < 24)
+            return CborErrorUnknownTag;
+        if ((flags & CborValidateNoUnknownTagsSR) == CborValidateNoUnknownTagsSR && tag < 256)
+            return CborErrorUnknownTag;
+        if ((flags & CborValidateNoUnknownTags) == CborValidateNoUnknownTags)
+            return CborErrorUnknownTag;
+    }
+
+    if (flags & CborValidateTagUse && tagData && tagData->types) {
+        uint32_t allowedTypes = tagData->types;
+
+        /* correct Integer so it's not zero */
+        if (type == CborIntegerType)
+            type = (CborType)(type + 1);
+
+        while (allowedTypes) {
+            if ((uint8_t)(allowedTypes & 0xff) == type)
+                break;
+            allowedTypes >>= 8;
+        }
+        if (!allowedTypes)
+            return CborErrorInappropriateTagForType;
+    }
+
+    return validate_value(it, flags, recursionLeft);
+}
+
+#ifndef CBOR_NO_FLOATING_POINT
+static inline CborError validate_floating_point(CborValue *it, CborType type, uint32_t flags)
+{
+    CborError err;
+    int r;
+    double val;
+    float valf;
+    uint16_t valf16 = 0x7c01;       /* dummy value, an infinity */
+
+    if (type != CborDoubleType) {
+        if (type == CborFloatType) {
+            err = cbor_value_get_float(it, &valf);
+            val = valf;
+        } else {
+#  ifdef CBOR_NO_HALF_FLOAT_TYPE
+            (void)valf16;
+            return CborErrorUnsupportedType;
+#  else
+            err = cbor_value_get_half_float(it, &valf16);
+            val = decode_half(valf16);
+#  endif
+        }
+    } else {
+        err = cbor_value_get_double(it, &val);
+    }
+    cbor_assert(err == CborNoError);     /* can't fail */
+
+    r = fpclassify(val);
+    if (r == FP_NAN || r == FP_INFINITE) {
+        if (flags & CborValidateFiniteFloatingPoint)
+            return CborErrorExcludedValue;
+        if (flags & CborValidateShortestFloatingPoint) {
+            if (type == CborDoubleType)
+                return CborErrorOverlongEncoding;
+#  ifndef CBOR_NO_HALF_FLOAT_TYPE
+            if (type == CborFloatType)
+                return CborErrorOverlongEncoding;
+            if (r == FP_NAN && valf16 != 0x7e00)
+                return CborErrorImproperValue;
+            if (r == FP_INFINITE && valf16 != 0x7c00 && valf16 != 0xfc00)
+                return CborErrorImproperValue;
+#  endif
+        }
+    }
+
+    if (flags & CborValidateShortestFloatingPoint && type > CborHalfFloatType) {
+        if (type == CborDoubleType) {
+            valf = (float)val;
+            if ((double)valf == val)
+                return CborErrorOverlongEncoding;
+        }
+#  ifndef CBOR_NO_HALF_FLOAT_TYPE
+        if (type == CborFloatType) {
+            valf16 = encode_half(valf);
+            if (valf == decode_half(valf16))
+                return CborErrorOverlongEncoding;
+        }
+#  endif
+    }
+
+    return CborNoError;
+}
+#endif
+
+static CborError validate_container(CborValue *it, int containerType, uint32_t flags, int recursionLeft)
+{
+    CborError err;
+    const uint8_t *previous = NULL;
+    const uint8_t *previous_end = NULL;
+
+    if (!recursionLeft)
+        return CborErrorNestingTooDeep;
+
+    while (!cbor_value_at_end(it)) {
+        const uint8_t *current = cbor_value_get_next_byte(it);
+
+        if (containerType == CborMapType) {
+            if (flags & CborValidateMapKeysAreString) {
+                CborType type = cbor_value_get_type(it);
+                if (type == CborTagType) {
+                    /* skip the tags */
+                    CborValue copy = *it;
+                    err = cbor_value_skip_tag(&copy);
+                    if (err)
+                        return err;
+                    type = cbor_value_get_type(&copy);
+                }
+                if (type != CborTextStringType)
+                    return CborErrorMapKeyNotString;
+            }
+        }
+
+        err = validate_value(it, flags, recursionLeft);
+        if (err)
+            return err;
+
+        if (containerType != CborMapType)
+            continue;
+
+        if (flags & CborValidateMapIsSorted) {
+            if (it->parser->flags & CborParserFlag_ExternalSource)
+                return CborErrorUnimplementedValidation;
+            if (previous) {
+                size_t bytelen1 = (size_t)(previous_end - previous);
+                size_t bytelen2 = (size_t)(cbor_value_get_next_byte(it) - current);
+                int r = memcmp(previous, current, bytelen1 <= bytelen2 ? bytelen1 : bytelen2);
+
+                if (r == 0 && bytelen1 != bytelen2)
+                    r = bytelen1 < bytelen2 ? -1 : +1;
+                if (r > 0)
+                    return CborErrorMapNotSorted;
+                if (r == 0 && (flags & CborValidateMapKeysAreUnique) == CborValidateMapKeysAreUnique)
+                    return CborErrorMapKeysNotUnique;
+            }
+
+            previous = current;
+            previous_end = cbor_value_get_next_byte(it);
+        }
+
+        /* map: that was the key, so get the value */
+        err = validate_value(it, flags, recursionLeft);
+        if (err)
+            return err;
+    }
+    return CborNoError;
+}
+
+static CborError validate_value(CborValue *it, uint32_t flags, int recursionLeft)
+{
+    CborError err;
+    CborType type = cbor_value_get_type(it);
+
+    if (cbor_value_is_length_known(it)) {
+        err = validate_number(it, type, flags);
+        if (err)
+            return err;
+    } else {
+        if (flags & CborValidateNoIndeterminateLength)
+            return CborErrorUnknownLength;
+    }
+
+    switch (type) {
+    case CborArrayType:
+    case CborMapType: {
+        /* recursive type */
+        CborValue recursed;
+        err = cbor_value_enter_container(it, &recursed);
+        if (!err)
+            err = validate_container(&recursed, type, flags, recursionLeft - 1);
+        if (err) {
+            copy_current_position(it, &recursed);
+            return err;
+        }
+        err = cbor_value_leave_container(it, &recursed);
+        if (err)
+            return err;
+        return CborNoError;
+    }
+
+    case CborIntegerType: {
+        uint64_t val;
+        err = cbor_value_get_raw_integer(it, &val);
+        cbor_assert(err == CborNoError);         /* can't fail */
+
+        break;
+    }
+
+    case CborByteStringType:
+    case CborTextStringType: {
+        size_t n = 0;
+        const void *ptr;
+
+        err = cbor_value_begin_string_iteration(it);
+        if (err)
+            return err;
+
+        while (1) {
+            CborValue next;
+            err = _cbor_value_get_string_chunk(it, &ptr, &n, &next);
+            if (!err) {
+                err = validate_number(it, type, flags);
+                if (err)
+                    return err;
+            }
+
+            *it = next;
+            if (err == CborErrorNoMoreStringChunks)
+                return cbor_value_finish_string_iteration(it);
+            if (err)
+                return err;
+
+            if (type == CborTextStringType && flags & CborValidateUtf8) {
+                err = validate_utf8_string(ptr, n);
+                if (err)
+                    return err;
+            }
+        }
+
+        return CborNoError;
+    }
+
+    case CborTagType: {
+        CborTag tag;
+        err = cbor_value_get_tag(it, &tag);
+        cbor_assert(err == CborNoError);     /* can't fail */
+
+        err = cbor_value_advance_fixed(it);
+        if (err)
+            return err;
+        err = validate_tag(it, tag, flags, recursionLeft - 1);
+        if (err)
+            return err;
+
+        return CborNoError;
+    }
+
+    case CborSimpleType: {
+        uint8_t simple_type;
+        err = cbor_value_get_simple_type(it, &simple_type);
+        cbor_assert(err == CborNoError);     /* can't fail */
+        err = validate_simple_type(simple_type, flags);
+        if (err)
+            return err;
+        break;
+    }
+
+    case CborNullType:
+    case CborBooleanType:
+        break;
+
+    case CborUndefinedType:
+        if (flags & CborValidateNoUndefined)
+            return CborErrorExcludedType;
+        break;
+
+    case CborHalfFloatType:
+    case CborFloatType:
+    case CborDoubleType: {
+#ifdef CBOR_NO_FLOATING_POINT
+        return CborErrorUnsupportedType;
+#else
+        err = validate_floating_point(it, type, flags);
+        if (err)
+            return err;
+        break;
+#endif /* !CBOR_NO_FLOATING_POINT */
+    }
+
+    case CborInvalidType:
+        return CborErrorUnknownType;
+    }
+
+    err = cbor_value_advance_fixed(it);
+    return err;
+}
+
+/**
+ * Performs a full validation, controlled by the \a flags options, of the CBOR
+ * stream pointed by \a it and returns the error it found. If no error was
+ * found, it returns CborNoError and the application can iterate over the items
+ * with certainty that no errors will appear during parsing.
+ *
+ * If \a flags is CborValidateBasic, the result should be the same as
+ * cbor_value_validate_basic().
+ *
+ * This function has the same timing and memory requirements as
+ * cbor_value_advance() and cbor_value_validate_basic().
+ *
+ * \sa CborValidationFlags, cbor_value_validate_basic(), cbor_value_advance()
+ */
+CborError cbor_value_validate(const CborValue *it, uint32_t flags)
+{
+    CborValue value = *it;
+    CborError err = validate_value(&value, flags, CBOR_PARSER_MAX_RECURSIONS);
+    if (err)
+        return err;
+    if (flags & CborValidateCompleteData && can_read_bytes(it, 1))
+        return CborErrorGarbageAtEnd;
+    return CborNoError;
+}
+
+/**
+ * @}
+ */

lib/cbor/tinycbor/src/compilersupport_p.h

@@ -0,0 +1,205 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef COMPILERSUPPORT_H
+#define COMPILERSUPPORT_H
+
+#include "cbor.h"
+
+#ifndef _BSD_SOURCE
+#  define _BSD_SOURCE
+#endif
+#ifndef _DEFAULT_SOURCE
+#  define _DEFAULT_SOURCE
+#endif
+#ifndef assert
+#  include <assert.h>
+#endif
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#ifndef __cplusplus
+#  include <stdbool.h>
+#endif
+
+#if __STDC_VERSION__ >= 201112L || (defined(__cplusplus) && __cplusplus >= 201103L) || (defined(__cpp_static_assert) && __cpp_static_assert >= 200410)
+#  define cbor_static_assert(x)         static_assert(x, #x)
+#elif !defined(__cplusplus) && defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 406) && (__STDC_VERSION__ > 199901L)
+#  define cbor_static_assert(x)         _Static_assert(x, #x)
+#else
+#  define cbor_static_assert(x)         ((void)sizeof(char[2*!!(x) - 1]))
+#endif
+#if __STDC_VERSION__ >= 199901L || defined(__cplusplus)
+/* inline is a keyword */
+#else
+/* use the definition from cbor.h */
+#  define inline    CBOR_INLINE
+#endif
+
+#ifdef NDEBUG
+#  define cbor_assert(cond)     do { if (!(cond)) unreachable(); } while (0)
+#else
+#  define cbor_assert(cond)     assert(cond)
+#endif
+
+#ifndef STRINGIFY
+#define STRINGIFY(x)            STRINGIFY2(x)
+#endif
+#define STRINGIFY2(x)           #x
+
+#if !defined(UINT32_MAX) || !defined(INT64_MAX)
+/* C89? We can define UINT32_MAX portably, but not INT64_MAX */
+#  error "Your system has stdint.h but that doesn't define UINT32_MAX or INT64_MAX"
+#endif
+
+#ifndef DBL_DECIMAL_DIG
+/* DBL_DECIMAL_DIG is C11 */
+#  define DBL_DECIMAL_DIG       17
+#endif
+#define DBL_DECIMAL_DIG_STR     STRINGIFY(DBL_DECIMAL_DIG)
+
+#if defined(__GNUC__) && defined(__i386__) && !defined(__iamcu__)
+#  define CBOR_INTERNAL_API_CC          __attribute__((regparm(3)))
+#elif defined(_MSC_VER) && defined(_M_IX86)
+#  define CBOR_INTERNAL_API_CC          __fastcall
+#else
+#  define CBOR_INTERNAL_API_CC
+#endif
+
+#ifndef __has_builtin
+#  define __has_builtin(x)  0
+#endif
+
+#if (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 403)) || \
+    (__has_builtin(__builtin_bswap64) && __has_builtin(__builtin_bswap32))
+#  if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#    define cbor_ntohll     __builtin_bswap64
+#    define cbor_htonll     __builtin_bswap64
+#    define cbor_ntohl      __builtin_bswap32
+#    define cbor_htonl      __builtin_bswap32
+#    ifdef __INTEL_COMPILER
+#      define cbor_ntohs    _bswap16
+#      define cbor_htons    _bswap16
+#    elif (__GNUC__ * 100 + __GNUC_MINOR__ >= 608) || __has_builtin(__builtin_bswap16)
+#      define cbor_ntohs    __builtin_bswap16
+#      define cbor_htons    __builtin_bswap16
+#    else
+#      define cbor_ntohs(x) (((uint16_t)(x) >> 8) | ((uint16_t)(x) << 8))
+#      define cbor_htons    cbor_ntohs
+#    endif
+#  else
+#    define cbor_ntohll
+#    define cbor_htonll
+#    define cbor_ntohl
+#    define cbor_htonl
+#    define cbor_ntohs
+#    define cbor_htons
+#  endif
+#elif defined(__sun)
+#  include <sys/byteorder.h>
+#elif defined(_MSC_VER)
+/* MSVC, which implies Windows, which implies little-endian and sizeof(long) == 4 */
+#  include <stdlib.h>
+#  define cbor_ntohll       _byteswap_uint64
+#  define cbor_htonll       _byteswap_uint64
+#  define cbor_ntohl        _byteswap_ulong
+#  define cbor_htonl        _byteswap_ulong
+#  define cbor_ntohs        _byteswap_ushort
+#  define cbor_htons        _byteswap_ushort
+#endif
+#ifndef cbor_ntohs
+#  include <arpa/inet.h>
+#  define cbor_ntohs        ntohs
+#  define cbor_htons        htons
+#endif
+#ifndef cbor_ntohl
+#  include <arpa/inet.h>
+#  define cbor_ntohl        ntohl
+#  define cbor_htonl        htonl
+#endif
+#ifndef cbor_ntohll
+#  define cbor_ntohll       ntohll
+#  define cbor_htonll       htonll
+/* ntohll isn't usually defined */
+#  ifndef ntohll
+#    if (defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) || \
+    (defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && __BYTE_ORDER == __BIG_ENDIAN) || \
+    (defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN) || \
+    (defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN)) || (defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__)) || \
+    defined(__ARMEB__) || defined(__MIPSEB__) || defined(__s390__) || defined(__sparc__)
+#      define ntohll
+#      define htonll
+#    elif (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) || \
+    (defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && __BYTE_ORDER == __LITTLE_ENDIAN) || \
+    (defined(BYTE_ORDER) && defined(LITTLE_ENDIAN) && BYTE_ORDER == LITTLE_ENDIAN) || \
+    defined(_LITTLE_ENDIAN) || defined(__LITTLE_ENDIAN__) || defined(__ARMEL__) || defined(__MIPSEL__) || \
+    defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__) || defined(__amd64)
+#      define ntohll(x)       ((ntohl((uint32_t)(x)) * UINT64_C(0x100000000)) + (ntohl((x) >> 32)))
+#      define htonll          ntohll
+#    else
+#      error "Unable to determine byte order!"
+#    endif
+#  endif
+#endif
+
+
+#ifdef __cplusplus
+#  define CONST_CAST(t, v)  const_cast<t>(v)
+#else
+/* C-style const_cast without triggering a warning with -Wcast-qual */
+#  define CONST_CAST(t, v)  (t)(uintptr_t)(v)
+#endif
+
+#ifdef __GNUC__
+#ifndef likely
+#  define likely(x)     __builtin_expect(!!(x), 1)
+#endif
+#ifndef unlikely
+#  define unlikely(x)   __builtin_expect(!!(x), 0)
+#endif
+#  define unreachable() __builtin_unreachable()
+#elif defined(_MSC_VER)
+#  define likely(x)     (x)
+#  define unlikely(x)   (x)
+#  define unreachable() __assume(0)
+#else
+#  define likely(x)     (x)
+#  define unlikely(x)   (x)
+#  define unreachable() do {} while (0)
+#endif
+
+static inline bool add_check_overflow(size_t v1, size_t v2, size_t *r)
+{
+#if ((defined(__GNUC__) && (__GNUC__ >= 5)) && !defined(__INTEL_COMPILER)) || __has_builtin(__builtin_add_overflow)
+    return __builtin_add_overflow(v1, v2, r);
+#else
+    /* unsigned additions are well-defined */
+    *r = v1 + v2;
+    return v1 > v1 + v2;
+#endif
+}
+
+#endif /* COMPILERSUPPORT_H */
+

lib/cbor/tinycbor/src/open_memstream.c

@@ -0,0 +1,114 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#define _BSD_SOURCE 1
+#define _DEFAULT_SOURCE 1
+#define _GNU_SOURCE 1
+
+#include <sys/types.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if defined(__unix__) || defined(__APPLE__)
+#  include <unistd.h>
+#endif
+#ifdef __APPLE__
+typedef int RetType;
+typedef int LenType;
+#elif __linux__
+typedef ssize_t RetType;
+typedef size_t LenType;
+#else
+#  error "Cannot implement open_memstream!"
+#endif
+
+#include "compilersupport_p.h"
+
+struct Buffer
+{
+    char **ptr;
+    size_t *len;
+    size_t alloc;
+};
+
+static RetType write_to_buffer(void *cookie, const char *data, LenType len)
+{
+    struct Buffer *b = (struct Buffer *)cookie;
+    char *ptr = *b->ptr;
+    size_t newsize;
+
+    errno = EFBIG;
+    if (unlikely(add_check_overflow(*b->len, len, &newsize)))
+        return -1;
+
+    if (newsize >= b->alloc) { // NB! one extra byte is needed to avoid buffer overflow at close_buffer
+        // make room
+        size_t newalloc = newsize + newsize / 2 + 1;    // give 50% more room
+        ptr = realloc(ptr, newalloc);
+        if (ptr == NULL)
+            return -1;
+        b->alloc = newalloc;
+        *b->ptr = ptr;
+    }
+
+    memcpy(ptr + *b->len, data, len);
+    *b->len = newsize;
+    return len;
+}
+
+static int close_buffer(void *cookie)
+{
+    struct Buffer *b = (struct Buffer *)cookie;
+    if (*b->ptr)
+        (*b->ptr)[*b->len] = '\0';
+    free(b);
+    return 0;
+}
+
+FILE *open_memstream(char **bufptr, size_t *lenptr)
+{
+    struct Buffer *b = (struct Buffer *)malloc(sizeof(struct Buffer));
+    if (b == NULL)
+        return NULL;
+    b->alloc = 0;
+    b->len = lenptr;
+    b->ptr = bufptr;
+    *bufptr = NULL;
+    *lenptr = 0;
+
+#ifdef __APPLE__
+    return funopen(b, NULL, write_to_buffer, NULL, close_buffer);
+#elif __linux__
+    static const cookie_io_functions_t vtable = {
+        NULL,
+        write_to_buffer,
+        NULL,
+        close_buffer
+    };
+    return fopencookie(b, "w", vtable);
+#endif
+}
+

lib/cbor/tinycbor/src/parsetags.pl

@@ -0,0 +1,116 @@
+#!/usr/bin/perl -l
+## Copyright (C) 2017 Intel Corporation
+##
+## Permission is hereby granted, free of charge, to any person obtaining a copy
+## of this software and associated documentation files (the "Software"), to deal
+## in the Software without restriction, including without limitation the rights
+## to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+## copies of the Software, and to permit persons to whom the Software is
+## furnished to do so, subject to the following conditions:
+##
+## The above copyright notice and this permission notice shall be included in
+## all copies or substantial portions of the Software.
+##
+## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+## IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+## FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+## AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+## LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+## OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+## THE SOFTWARE.
+##
+use strict;
+my $fname = shift @ARGV
+    or die("Usage: parsetags.pl tags.txt");
+open TAGS, "<", $fname
+    or die("Cannot open $fname: $!");
+
+my %typedescriptions = (
+    "Integer" => "integer",
+    "ByteString" => "byte string",
+    "TextString" => "UTF-8 text string",
+    "Array" => "array",
+    "Map" => "map",
+    "Tag" => "tag",     # shouldn't happen
+    "Simple" => "any simple type",
+    "Boolean" => "boolean",
+    "Null" => "null",
+    "Undefined" => "undefined",
+    "HalfFloat" => "IEEE 754 half-precision floating point",
+    "Float" => "IEEE 754 single-precision floating point",
+    "Double" => "IEEE 754 double-precision floating point"
+);
+
+my %tags;
+while (<TAGS>) {
+    s/\s*#.*$//;
+    next if /^$/;
+    chomp;
+
+    die("Could not parse line \"$_\"")
+        unless /^(\d+);(\w+);([\w,]*);(.*)$/;
+    $tags{$1}{id} = $2;
+    $tags{$1}{semantic} = $4;
+    my @types = split(',', $3);
+    $tags{$1}{types} = \@types;
+}
+close TAGS or die;
+
+my @tagnumbers = sort { $a <=> $b } keys %tags;
+
+print "==== HTML listing ====";
+print "<table>\n  <tr>\n    <th>Tag</th>\n    <th>Data Item</th>\n    <th>Semantics</th>\n  </tr>";
+for my $n (@tagnumbers) {
+    print "  <tr>";
+    print "    <td>$n</td>";
+
+    my @types = @{$tags{$n}{types}};
+    @types = map { $typedescriptions{$_}; } @types;
+    unshift @types, "any"
+        if (scalar @types == 0);
+    printf "    <td>%s</td>\n", join(', ', @types);
+    printf "    <td>%s</td>\n", $tags{$n}{semantic};
+    print "  </td>";
+}
+print "</table>";
+
+print "\n==== enum listing for cbor.h ====\n";
+printf "typedef enum CborKnownTags {";
+my $comma = "";
+for my $n (@tagnumbers) {
+    printf "%s\n    Cbor%sTag%s = %d", $comma,
+        $tags{$n}{id},
+        ' ' x (23 - length($tags{$n}{id})),
+        $n;
+    $comma = ",";
+}
+print "\n} CborKnownTags;";
+print "\n/* #define the constants so we can check with #ifdef */";
+for my $n (@tagnumbers) {
+    printf "#define Cbor%sTag Cbor%sTag\n", $tags{$n}{id}, $tags{$n}{id};
+}
+
+print "\n==== search table ====\n";
+print "struct KnownTagData { uint32_t tag; uint32_t types; };";
+printf "static const struct KnownTagData knownTagData[] = {";
+$comma = "";
+for my $n (@tagnumbers) {
+    my @types = @{$tags{$n}{types}};
+
+    my $typemask;
+    my $shift = 0;
+    for my $type (@types) {
+        die("Too many match types for tag $n") if $shift == 32;
+        my $actualtype = "Cbor${type}Type";
+        $actualtype = "($actualtype+1)" if $type eq "Integer";
+        $typemask .= " | " if $typemask ne "";
+        $typemask .= "((uint32_t)$actualtype << $shift)" if $shift;
+        $typemask .= "(uint32_t)$actualtype" unless $shift;
+        $shift += 8;
+    }
+    $typemask = "0U" if $typemask eq "";
+
+    printf "%s\n    { %d, %s }", $comma, $n, $typemask;
+    $comma = ",";
+}
+print "\n};";

lib/cbor/tinycbor/src/src.pri

@@ -0,0 +1,26 @@
+SOURCES += \
+    $$PWD/cborencoder.c \
+    $$PWD/cborencoder_close_container_checked.c \
+    $$PWD/cborencoder_float.c \
+    $$PWD/cborerrorstrings.c \
+    $$PWD/cborparser.c \
+    $$PWD/cborparser_dup_string.c \
+    $$PWD/cborparser_float.c \
+    $$PWD/cborpretty.c \
+    $$PWD/cborpretty_stdio.c \
+    $$PWD/cbortojson.c \
+    $$PWD/cborvalidation.c \
+
+HEADERS += \
+    $$PWD/cbor.h \
+    $$PWD/cborinternal_p.h \
+    $$PWD/cborjson.h \
+    $$PWD/compilersupport_p.h \
+    $$PWD/tinycbor-version.h \
+    $$PWD/utf8_p.h \
+
+
+QMAKE_CFLAGS *= $$QMAKE_CFLAGS_SPLIT_SECTIONS
+QMAKE_LFLAGS *= $$QMAKE_LFLAGS_GCSECTIONS
+INCLUDEPATH += $$PWD
+CONFIG(release, debug|release): DEFINES += NDEBUG

lib/cbor/tinycbor/src/tags.txt

@@ -0,0 +1,23 @@
+# Tag number; Tag ID; Applicable types (comma-separated); Semantics
+0;DateTimeString;TextString;Standard date/time string
+1;UnixTime_t;Integer;Epoch-based date/time
+2;PositiveBignum;ByteString;Positive bignum
+3;NegativeBignum;ByteString;Negative bignum
+4;Decimal;Array;Decimal fraction
+5;Bigfloat;Array;Bigfloat
+16;COSE_Encrypt0;Array;COSE Single Recipient Encrypted Data Object (RFC 8152)
+17;COSE_Mac0;Array;COSE Mac w/o Recipients Object (RFC 8152)
+18;COSE_Sign1;Array;COSE Single Signer Data Object (RFC 8162)
+21;ExpectedBase64url;ByteString,Array,Map;Expected conversion to base64url encoding
+22;ExpectedBase64;ByteString,Array,Map;Expected conversion to base64 encoding
+23;ExpectedBase16;ByteString,Array,Map;Expected conversion to base16 encoding
+24;EncodedCbor;ByteString;Encoded CBOR data item
+32;Url;TextString;URI
+33;Base64url;TextString;base64url
+34;Base64;TextString;base64
+35;RegularExpression;TextString;Regular expression
+36;MimeMessage;TextString;MIME message
+96;COSE_Encrypt;Array;COSE Encrypted Data Object (RFC 8152)
+97;COSE_Mac;Array;COSE MACed Data Object (RFC 8152)
+98;COSE_Sign;Array;COSE Signed Data Object (RFC 8152)
+55799;Signature;;Self-describe CBOR

lib/cbor/tinycbor/src/tinycbor-version.h

@@ -0,0 +1,3 @@
+#define TINYCBOR_VERSION_MAJOR      0
+#define TINYCBOR_VERSION_MINOR      6
+#define TINYCBOR_VERSION_PATCH      0

lib/cbor/tinycbor/src/tinycbor.pro

@@ -0,0 +1,10 @@
+TEMPLATE = lib
+CONFIG += static warn_on
+CONFIG -= qt
+DESTDIR = ../lib
+
+!msvc:QMAKE_CFLAGS += \
+    -Werror=incompatible-pointer-types \
+    -Werror=implicit-function-declaration \
+    -Werror=int-conversion
+include(src.pri)

lib/cbor/tinycbor/src/utf8_p.h

@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef CBOR_UTF8_H
+#define CBOR_UTF8_H
+
+#include "compilersupport_p.h"
+
+#include <stdint.h>
+
+static inline uint32_t get_utf8(const uint8_t **buffer, const uint8_t *end)
+{
+    int charsNeeded;
+    uint32_t uc, min_uc;
+    uint8_t b;
+    ptrdiff_t n = end - *buffer;
+    if (n == 0)
+        return ~0U;
+
+    uc = *(*buffer)++;
+    if (uc < 0x80) {
+        /* single-byte UTF-8 */
+        return uc;
+    }
+
+    /* multi-byte UTF-8, decode it */
+    if (unlikely(uc <= 0xC1))
+        return ~0U;
+    if (uc < 0xE0) {
+        /* two-byte UTF-8 */
+        charsNeeded = 2;
+        min_uc = 0x80;
+        uc &= 0x1f;
+    } else if (uc < 0xF0) {
+        /* three-byte UTF-8 */
+        charsNeeded = 3;
+        min_uc = 0x800;
+        uc &= 0x0f;
+    } else if (uc < 0xF5) {
+        /* four-byte UTF-8 */
+        charsNeeded = 4;
+        min_uc = 0x10000;
+        uc &= 0x07;
+    } else {
+        return ~0U;
+    }
+
+    if (n < charsNeeded)
+        return ~0U;
+
+    /* first continuation character */
+    b = *(*buffer)++;
+    if ((b & 0xc0) != 0x80)
+        return ~0U;
+    uc <<= 6;
+    uc |= b & 0x3f;
+
+    if (charsNeeded > 2) {
+        /* second continuation character */
+        b = *(*buffer)++;
+        if ((b & 0xc0) != 0x80)
+            return ~0U;
+        uc <<= 6;
+        uc |= b & 0x3f;
+
+        if (charsNeeded > 3) {
+            /* third continuation character */
+            b = *(*buffer)++;
+            if ((b & 0xc0) != 0x80)
+                return ~0U;
+            uc <<= 6;
+            uc |= b & 0x3f;
+        }
+    }
+
+    /* overlong sequence? surrogate pair? out or range? */
+    if (uc < min_uc || uc - 0xd800U < 2048U || uc > 0x10ffff)
+        return ~0U;
+
+    return uc;
+}
+
+#endif /* CBOR_UTF8_H */

lib/cbor/tinycbor/tests/.gitignore

@@ -0,0 +1,15 @@
+Makefile
+debug
+moc_predefs.h
+release
+target_wrapper.*
+
+# The executables
+cpp/cpp
+cpp/cpp.exe
+encoder/encoder
+encoder/encoder.exe
+parser/parser
+parser/parser.exe
+tojson/tojson
+tojson/tojson.exe

lib/cbor/tinycbor/tests/c90/c90.pro

@@ -0,0 +1,7 @@
+CONFIG += testcase parallel_test console
+CONFIG -= qt app_bundle
+gcc: QMAKE_CFLAGS += -std=c90 -pedantic-errors -Wall -Wextra -Werror
+darwin: QMAKE_CFLAGS += -Wno-long-long
+
+SOURCES += tst_c90.c
+INCLUDEPATH += ../../src

lib/cbor/tinycbor/tests/c90/tst_c90.c

@@ -0,0 +1,30 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#include "cbor.h"
+
+int main()
+{
+    return 0;
+}

lib/cbor/tinycbor/tests/cpp/cpp.pro

@@ -0,0 +1,5 @@
+CONFIG += testcase parallel_test c++11
+QT = core testlib
+
+SOURCES = tst_cpp.cpp
+INCLUDEPATH += ../../src

lib/cbor/tinycbor/tests/cpp/tst_cpp.cpp

@@ -0,0 +1,44 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#include "../../src/cborencoder.c"
+#include "../../src/cborencoder_float.c"
+#include "../../src/cborerrorstrings.c"
+#include "../../src/cborparser.c"
+#include "../../src/cborparser_dup_string.c"
+#include "../../src/cborparser_float.c"
+#include "../../src/cborvalidation.c"
+
+#include <QtTest>
+
+// This is a compilation-only test.
+// All it does is verify that the four source files above
+// compile as C++ without errors.
+class tst_Cpp : public QObject
+{
+    Q_OBJECT
+};
+
+QTEST_MAIN(tst_Cpp)
+#include "tst_cpp.moc"

lib/cbor/tinycbor/tests/encoder/data.cpp

@@ -0,0 +1,346 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#include <QtTest>
+
+static float myNaNf()
+{
+    uint32_t v = 0x7fc00000;
+    float f;
+    memcpy(&f, &v, sizeof(f));
+    Q_ASSERT(qIsNaN(f));
+    return f;
+}
+
+static float myInff()
+{
+    uint32_t v = 0x7f800000;
+    float f;
+    memcpy(&f, &v, sizeof(f));
+    Q_ASSERT(qIsInf(f));
+    return f;
+}
+
+static float myNInff()
+{
+    uint32_t v = 0xff800000;
+    float f;
+    memcpy(&f, &v, sizeof(f));
+    Q_ASSERT(qIsInf(f));
+    return f;
+}
+
+static double myNaN()
+{
+    uint64_t v = UINT64_C(0x7ff8000000000000);
+    double f;
+    memcpy(&f, &v, sizeof(f));
+    Q_ASSERT(qIsNaN(f));
+    return f;
+}
+
+static double myInf()
+{
+    uint64_t v = UINT64_C(0x7ff0000000000000);
+    double f;
+    memcpy(&f, &v, sizeof(f));
+    Q_ASSERT(qIsInf(f));
+    return f;
+}
+
+static double myNInf()
+{
+    uint64_t v = UINT64_C(0xfff0000000000000);
+    double f;
+    memcpy(&f, &v, sizeof(f));
+    Q_ASSERT(qIsInf(f));
+    return f;
+}
+
+template <size_t N> QByteArray raw(const char (&data)[N])
+{
+    return QByteArray::fromRawData(data, N - 1);
+}
+
+struct NegativeInteger { quint64 abs; };
+Q_DECLARE_METATYPE(NegativeInteger)
+
+struct SimpleType { uint8_t type; };
+Q_DECLARE_METATYPE(SimpleType)
+
+struct Float16Standin { uint16_t val; };
+Q_DECLARE_METATYPE(Float16Standin)
+
+struct Tag { CborTag tag; QVariant tagged; };
+Q_DECLARE_METATYPE(Tag)
+
+template <typename... Args>
+QVariant make_list(const Args &... args)
+{
+    return QVariantList{args...};
+}
+
+typedef QVector<QPair<QVariant, QVariant>> Map;
+Q_DECLARE_METATYPE(Map)
+QVariant make_map(const std::initializer_list<QPair<QVariant, QVariant>> &list)
+{
+    return QVariant::fromValue(Map(list));
+}
+
+struct IndeterminateLengthArray : QVariantList { using QVariantList::QVariantList; };
+struct IndeterminateLengthMap : Map { using Map::Map; };
+Q_DECLARE_METATYPE(IndeterminateLengthArray)
+Q_DECLARE_METATYPE(IndeterminateLengthMap)
+
+QVariant make_ilarray(const std::initializer_list<QVariant> &list)
+{
+    return QVariant::fromValue(IndeterminateLengthArray(list));
+}
+
+QVariant make_ilmap(const std::initializer_list<QPair<QVariant, QVariant>> &list)
+{
+    return QVariant::fromValue(IndeterminateLengthMap(list));
+}
+
+void addHalfFloat()
+{
+    QTest::addColumn<QByteArray>("output");
+    QTest::addColumn<unsigned>("rawInput");
+    QTest::addColumn<double>("floatInput");
+
+    QTest::newRow("+0") << raw("\x00\x00") << 0U << 0.0;
+    QTest::newRow("-0") << raw("\x80\x00") << 0x8000U << 0.0;
+
+    QTest::newRow("min.denorm") << raw("\x00\x01") << 1U << ldexp(1.0, -14) * ldexp(1.0, -10);
+    QTest::newRow("-min.denorm") << raw("\x80\x01") << 0x8001U << ldexp(-1.0, -14) * ldexp(1.0, -10);
+
+    QTest::newRow("max.denorm") << raw("\x03\xff") << 0x03ffU << ldexp(1.0, -14) * (1.0 - ldexp(1.0, -10));
+    QTest::newRow("-max.denorm") << raw("\x83\xff") << 0x83ffU << ldexp(-1.0, -14) * (1.0 - ldexp(1.0, -10));
+
+    QTest::newRow("min.norm") << raw("\x04\x00") << 0x0400U << ldexp(1.0, -14);
+    QTest::newRow("-min.norm") << raw("\x84\x00") << 0x8400U << ldexp(-1.0, -14);
+
+    QTest::newRow("1.0") << raw("\x3c\x00") << 0x3c00U << 1.0;
+    QTest::newRow("-1.0") << raw("\xbc\x00") << 0xbc00U << -1.0;
+
+    QTest::newRow("1.5") << raw("\x3e\x00") << 0x3e00U << 1.5;
+    QTest::newRow("-1.5") << raw("\xbe\x00") << 0xbe00U << -1.5;
+
+    QTest::newRow("max") << raw("\x7b\xff") << 0x7bffU << ldexp(1.0, 15) * (2.0 - ldexp(1.0, -10));
+    QTest::newRow("-max") << raw("\xfb\xff") << 0xfbffU << ldexp(-1.0, 15) * (2.0 - ldexp(1.0, -10));
+
+    QTest::newRow("inf") << raw("\x7c\x00") << 0x7c00U << myInf();
+    QTest::newRow("-inf") << raw("\xfc\x00") << 0xfc00U << myNInf();
+
+    QTest::newRow("nan1") << raw("\x7c\x01") << 0x7c01U << myNaN();
+    QTest::newRow("nan2") << raw("\xfc\x01") << 0xfc01U << myNaN();
+    QTest::newRow("nan3") << raw("\x7e\x00") << 0x7e00U << myNaN();
+    QTest::newRow("nan4") << raw("\xfe\x00") << 0xfe00U << myNaN();
+}
+
+void addColumns()
+{
+    QTest::addColumn<QByteArray>("output");
+    QTest::addColumn<QVariant>("input");
+}
+
+void addFixedData()
+{
+    // unsigned integers
+    QTest::newRow("0U") << raw("\x00") << QVariant(0U);
+    QTest::newRow("1U") << raw("\x01") << QVariant(1U);
+    QTest::newRow("10U") << raw("\x0a") << QVariant(10U);
+    QTest::newRow("23U") << raw("\x17") << QVariant(23U);
+    QTest::newRow("24U") << raw("\x18\x18") << QVariant(24U);
+    QTest::newRow("255U") << raw("\x18\xff") << QVariant(255U);
+    QTest::newRow("256U") << raw("\x19\x01\x00") << QVariant(256U);
+    QTest::newRow("65535U") << raw("\x19\xff\xff") << QVariant(65535U);
+    QTest::newRow("65536U") << raw("\x1a\0\1\x00\x00") << QVariant(65536U);
+    QTest::newRow("4294967295U") << raw("\x1a\xff\xff\xff\xff") << QVariant(4294967295U);
+    QTest::newRow("4294967296U") << raw("\x1b\0\0\0\1\0\0\0\0") << QVariant(Q_UINT64_C(4294967296));
+    QTest::newRow("UINT64_MAX") << raw("\x1b" "\xff\xff\xff\xff" "\xff\xff\xff\xff")
+                                << QVariant(std::numeric_limits<quint64>::max());
+
+    // signed integers containing non-negative numbers
+    QTest::newRow("0") << raw("\x00") << QVariant(0);
+    QTest::newRow("1") << raw("\x01") << QVariant(1);
+    QTest::newRow("10") << raw("\x0a") << QVariant(10);
+    QTest::newRow("23") << raw("\x17") << QVariant(23);
+    QTest::newRow("24") << raw("\x18\x18") << QVariant(24);
+    QTest::newRow("255") << raw("\x18\xff") << QVariant(255);
+    QTest::newRow("256") << raw("\x19\x01\x00") << QVariant(256);
+    QTest::newRow("65535") << raw("\x19\xff\xff") << QVariant(65535);
+    QTest::newRow("65536") << raw("\x1a\0\1\x00\x00") << QVariant(65536);
+    QTest::newRow("4294967295") << raw("\x1a\xff\xff\xff\xff") << QVariant(Q_INT64_C(4294967295));
+    QTest::newRow("4294967296") << raw("\x1b\0\0\0\1\0\0\0\0") << QVariant(Q_INT64_C(4294967296));
+
+    // signed integers containing negative numbers
+    QTest::newRow("-1") << raw("\x20") << QVariant(-1);
+    QTest::newRow("-2") << raw("\x21") << QVariant(-2);
+    QTest::newRow("-24") << raw("\x37") << QVariant(-24);
+    QTest::newRow("-25") << raw("\x38\x18") << QVariant(-25);
+    QTest::newRow("-UINT8_MAX") << raw("\x38\xff") << QVariant(-256);
+    QTest::newRow("-UINT8_MAX-1") << raw("\x39\x01\x00") << QVariant(-257);
+    QTest::newRow("-UINT16_MAX") << raw("\x39\xff\xff") << QVariant(-65536);
+    QTest::newRow("-UINT16_MAX-1") << raw("\x3a\0\1\x00\x00") << QVariant(-65537);
+    QTest::newRow("-UINT32_MAX") << raw("\x3a\xff\xff\xff\xff") << QVariant(Q_INT64_C(-4294967296));
+    QTest::newRow("-UINT32_MAX-1") << raw("\x3b\0\0\0\1\0\0\0\0") << QVariant(Q_INT64_C(-4294967297));
+
+    // negative integers
+    auto neg = [](quint64 v) { return QVariant::fromValue<NegativeInteger>({v}); };
+    QTest::newRow("negative1") << raw("\x20") << neg(1);
+    QTest::newRow("negative2") << raw("\x21") << neg(2);
+    QTest::newRow("negative24") << raw("\x37") << neg(24);
+    QTest::newRow("negative25") << raw("\x38\x18") << neg(25);
+    QTest::newRow("negativeUINT8_MAX") << raw("\x38\xff") << neg(256);
+    QTest::newRow("negativeUINT8_MAX-1") << raw("\x39\x01\x00") << neg(257);
+    QTest::newRow("negativeUINT16_MAX") << raw("\x39\xff\xff") << neg(65536);
+    QTest::newRow("negativeUINT16_MAX-1") << raw("\x3a\0\1\x00\x00") << neg(65537);
+    QTest::newRow("negativeUINT32_MAX") << raw("\x3a\xff\xff\xff\xff") << neg(Q_UINT64_C(4294967296));
+    QTest::newRow("negativeUINT32_MAX-1") << raw("\x3b\0\0\0\1\0\0\0\0") << neg(Q_UINT64_C(4294967297));
+    QTest::newRow("negativeUINT64_MAX") << raw("\x3b" "\xff\xff\xff\xff" "\xff\xff\xff\xfe")
+                                        << neg(std::numeric_limits<quint64>::max());
+    QTest::newRow("negativeUINT64_MAX+1") << raw("\x3b" "\xff\xff\xff\xff" "\xff\xff\xff\xff") << neg(0);
+
+    QTest::newRow("simple0") << raw("\xe0") << QVariant::fromValue(SimpleType{0});
+    QTest::newRow("simple19") << raw("\xf3") << QVariant::fromValue(SimpleType{19});
+    QTest::newRow("false") << raw("\xf4") << QVariant(false);
+    QTest::newRow("true") << raw("\xf5") << QVariant(true);
+    QTest::newRow("null") << raw("\xf6") << QVariant::fromValue<void *>(nullptr);
+    QTest::newRow("undefined") << raw("\xf7") << QVariant();
+    QTest::newRow("simple32") << raw("\xf8\x20") << QVariant::fromValue(SimpleType{32});
+    QTest::newRow("simple255") << raw("\xf8\xff") << QVariant::fromValue(SimpleType{255});
+
+    // floating point
+#if QT_VERSION < QT_VERSION_CHECK(5, 9, 0)
+    QTest::newRow("0.f16") << raw("\xf9\0\0") << QVariant::fromValue(Float16Standin{0x0000});
+#else
+    QTest::newRow("0.f16") << raw("\xf9\0\0") << QVariant::fromValue(qfloat16(0));
+    QTest::newRow("-1.f16") << raw("\xf9\xbc\0") << QVariant::fromValue(qfloat16(-1));
+    QTest::newRow("1.5f16") << raw("\xf9\x3e\0") << QVariant::fromValue(qfloat16(1.5));
+    QTest::newRow("nan_f16") << raw("\xf9\x7e\0") << QVariant::fromValue<qfloat16>(myNaNf());
+    QTest::newRow("-inf_f16") << raw("\xf9\xfc\0") << QVariant::fromValue<qfloat16>(myNInff());
+    QTest::newRow("+inf_f16") << raw("\xf9\x7c\0") << QVariant::fromValue<qfloat16>(myInff());
+#endif
+
+    QTest::newRow("0.f") << raw("\xfa\0\0\0\0") << QVariant::fromValue(0.f);
+    QTest::newRow("0.")  << raw("\xfb\0\0\0\0\0\0\0\0") << QVariant(0.);
+    QTest::newRow("-1.f") << raw("\xfa\xbf\x80\0\0") << QVariant::fromValue(-1.f);
+    QTest::newRow("-1.") << raw("\xfb\xbf\xf0\0\0\0\0\0\0") << QVariant(-1.);
+    QTest::newRow("16777215.f") << raw("\xfa\x4b\x7f\xff\xff") << QVariant::fromValue(16777215.f);
+    QTest::newRow("16777215.") << raw("\xfb\x41\x6f\xff\xff\xe0\0\0\0") << QVariant::fromValue(16777215.);
+    QTest::newRow("-16777215.f") << raw("\xfa\xcb\x7f\xff\xff") << QVariant(-16777215.f);
+    QTest::newRow("-16777215.") << raw("\xfb\xc1\x6f\xff\xff\xe0\0\0\0") << QVariant::fromValue(-16777215.);
+
+    QTest::newRow("nan_f") << raw("\xfa\x7f\xc0\0\0") << QVariant::fromValue<float>(myNaNf());
+    QTest::newRow("nan") << raw("\xfb\x7f\xf8\0\0\0\0\0\0") << QVariant(myNaN());
+    QTest::newRow("-inf_f") << raw("\xfa\xff\x80\0\0") << QVariant::fromValue<float>(myNInff());
+    QTest::newRow("-inf") << raw("\xfb\xff\xf0\0\0\0\0\0\0") << QVariant(myNInf());
+    QTest::newRow("+inf_f") << raw("\xfa\x7f\x80\0\0") << QVariant::fromValue<float>(myInff());
+    QTest::newRow("+inf") << raw("\xfb\x7f\xf0\0\0\0\0\0\0") << QVariant(myInf());
+}
+
+void addStringsData()
+{
+    // byte strings
+    QTest::newRow("emptybytestring") << raw("\x40") << QVariant(QByteArray(""));
+    QTest::newRow("bytestring1") << raw("\x41 ") << QVariant(QByteArray(" "));
+    QTest::newRow("bytestring1-nul") << raw("\x41\0") << QVariant(QByteArray("", 1));
+    QTest::newRow("bytestring5") << raw("\x45Hello") << QVariant(QByteArray("Hello"));
+    QTest::newRow("bytestring24") << raw("\x58\x18""123456789012345678901234")
+                                  << QVariant(QByteArray("123456789012345678901234"));
+    QTest::newRow("bytestring256") << raw("\x59\1\0") + QByteArray(256, '3')
+                                   << QVariant(QByteArray(256, '3'));
+
+    // text strings
+    QTest::newRow("emptytextstring") << raw("\x60") << QVariant("");
+    QTest::newRow("textstring1") << raw("\x61 ") << QVariant(" ");
+    QTest::newRow("textstring1-nul") << raw("\x61\0") << QVariant(QString::fromLatin1("", 1));
+    QTest::newRow("textstring5") << raw("\x65Hello") << QVariant("Hello");
+    QTest::newRow("textstring24") << raw("\x78\x18""123456789012345678901234")
+                                  << QVariant("123456789012345678901234");
+    QTest::newRow("textstring256") << raw("\x79\1\0") + QByteArray(256, '3')
+                                   << QVariant(QString(256, '3'));
+}
+
+void addArraysAndMaps()
+{
+    QTest::newRow("emptyarray") << raw("\x80") << make_list();
+    QTest::newRow("emptymap") << raw("\xa0") << make_map({});
+
+    QTest::newRow("array-0") << raw("\x81\0") << make_list(0);
+    QTest::newRow("array-{0-0}") << raw("\x82\0\0") << make_list(0, 0);
+    QTest::newRow("array-Hello") << raw("\x81\x65Hello") << make_list("Hello");
+    QTest::newRow("array-array-0") << raw("\x81\x81\0") << make_list(make_list(0));
+    QTest::newRow("array-array-{0-0}") << raw("\x81\x82\0\0") << make_list(make_list(0, 0));
+    QTest::newRow("array-array-0-0") << raw("\x82\x81\0\0") << make_list(make_list(0),0);
+    QTest::newRow("array-array-Hello") << raw("\x81\x81\x65Hello") << make_list(make_list("Hello"));
+
+    QTest::newRow("map-0:0") << raw("\xa1\0\0") << make_map({{0,0}});
+    QTest::newRow("map-0:0-1:1") << raw("\xa2\0\0\1\1") << make_map({{0,0}, {1,1}});
+    QTest::newRow("map-0:{map-0:0-1:1}") << raw("\xa1\0\xa2\0\0\1\1") << make_map({{0, make_map({{0,0}, {1,1}})}});
+
+    QTest::newRow("array-map1") << raw("\x81\xa1\0\0") << make_list(make_map({{0,0}}));
+    QTest::newRow("array-map2") << raw("\x82\xa1\0\0\xa1\1\1") << make_list(make_map({{0,0}}), make_map({{1,1}}));
+
+    QTest::newRow("map-array1") << raw("\xa1\x62oc\x81\0") << make_map({{"oc", make_list(0)}});
+    QTest::newRow("map-array2") << raw("\xa1\x62oc\x84\0\1\2\3") << make_map({{"oc", make_list(0, 1, 2, 3)}});
+    QTest::newRow("map-array3") << raw("\xa2\x62oc\x82\0\1\2\3") << make_map({{"oc", make_list(0, 1)}, {2, 3}});
+
+    // indeterminate length
+    QTest::newRow("_emptyarray") << raw("\x9f\xff") << QVariant::fromValue(IndeterminateLengthArray{});
+    QTest::newRow("_emptymap") << raw("\xbf\xff") << make_ilmap({});
+
+    QTest::newRow("_array-0") << raw("\x9f\0\xff") << make_ilarray({0});
+    QTest::newRow("_array-{0-0}") << raw("\x9f\0\0\xff") << make_ilarray({0, 0});
+    QTest::newRow("_array-Hello") << raw("\x9f\x65Hello\xff") << make_ilarray({"Hello"});
+    QTest::newRow("_array-array-0") << raw("\x9f\x81\0\xff") << make_ilarray({make_list(0)});
+    QTest::newRow("_array-_array-0") << raw("\x9f\x9f\0\xff\xff") << make_ilarray({make_ilarray({0})});
+    QTest::newRow("_array-_array-{0-0}") << raw("\x9f\x9f\0\0\xff\xff") << make_ilarray({make_ilarray({0, 0})});
+    QTest::newRow("_array-_array-0-0") << raw("\x9f\x9f\0\xff\0\xff") << make_ilarray({make_ilarray({0}),0});
+    QTest::newRow("_array-_array-Hello") << raw("\x9f\x9f\x65Hello\xff\xff") << make_ilarray({make_ilarray({"Hello"})});
+
+    QTest::newRow("_map-0:0") << raw("\xbf\0\0\xff") << make_ilmap({{0,0}});
+    QTest::newRow("_map-0:0-1:1") << raw("\xbf\0\0\1\1\xff") << make_ilmap({{0,0}, {1,1}});
+    QTest::newRow("_map-0:{map-0:0-1:1}") << raw("\xbf\0\xa2\0\0\1\1\xff") << make_ilmap({{0, make_map({{0,0}, {1,1}})}});
+    QTest::newRow("_map-0:{_map-0:0-1:1}") << raw("\xbf\0\xbf\0\0\1\1\xff\xff") << make_ilmap({{0, make_ilmap({{0,0}, {1,1}})}});
+
+    QTest::newRow("_array-map1") << raw("\x9f\xa1\0\0\xff") << make_ilarray({make_map({{0,0}})});
+    QTest::newRow("_array-_map1") << raw("\x9f\xbf\0\0\xff\xff") << make_ilarray({make_ilmap({{0,0}})});
+    QTest::newRow("_array-map2") << raw("\x9f\xa1\0\0\xa1\1\1\xff") << make_ilarray({make_map({{0,0}}), make_map({{1,1}})});
+    QTest::newRow("_array-_map2") << raw("\x9f\xbf\0\0\xff\xbf\1\1\xff\xff") << make_ilarray({make_ilmap({{0,0}}), make_ilmap({{1,1}})});
+
+    QTest::newRow("_map-array1") << raw("\xbf\x62oc\x81\0\xff") << make_ilmap({{"oc", make_list(0)}});
+    QTest::newRow("_map-_array1") << raw("\xbf\x62oc\x9f\0\xff\xff") << make_ilmap({{"oc", make_ilarray({0})}});
+    QTest::newRow("_map-array2") << raw("\xbf\x62oc\x84\0\1\2\3\xff") << make_ilmap({{"oc", make_list(0, 1, 2, 3)}});
+    QTest::newRow("_map-_array2") << raw("\xbf\x62oc\x9f\0\1\2\3\xff\xff") << make_ilmap({{"oc", make_ilarray({0, 1, 2, 3})}});
+    QTest::newRow("_map-array3") << raw("\xbf\x62oc\x82\0\1\2\3\xff") << make_ilmap({{"oc", make_list(0, 1)}, {2, 3}});
+    QTest::newRow("_map-_array3") << raw("\xbf\x62oc\x9f\0\1\xff\2\3\xff") << make_ilmap({{"oc", make_ilarray({0, 1})}, {2, 3}});
+
+    // tagged
+    QTest::newRow("array-1(0)") << raw("\x81\xc1\0") << make_list(QVariant::fromValue(Tag{1, 0}));
+    QTest::newRow("array-1(map)") << raw("\x81\xc1\xa0") << make_list(QVariant::fromValue(Tag{1, make_map({})}));
+    QTest::newRow("map-1(2):3(4)") << raw("\xa1\xc1\2\xc3\4") << make_map({{QVariant::fromValue(Tag{1, 2}), QVariant::fromValue(Tag{3, 4})}});
+}
+

lib/cbor/tinycbor/tests/encoder/encoder.pro

@@ -0,0 +1,9 @@
+SOURCES += tst_encoder.cpp
+
+CONFIG += testcase parallel_test c++11
+QT = core testlib
+
+INCLUDEPATH += ../../src
+msvc: POST_TARGETDEPS = ../../lib/tinycbor.lib
+else: POST_TARGETDEPS += ../../lib/libtinycbor.a
+LIBS += $$POST_TARGETDEPS

lib/cbor/tinycbor/tests/encoder/tst_encoder.cpp

@@ -0,0 +1,609 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#include <QtTest>
+#include "cbor.h"
+
+#if QT_VERSION >= QT_VERSION_CHECK(5, 9, 0)
+#include <qfloat16.h>
+#endif
+
+Q_DECLARE_METATYPE(CborError)
+namespace QTest {
+template<> char *toString<CborError>(const CborError &err)
+{
+    return qstrdup(cbor_error_string(err));
+}
+}
+
+class tst_Encoder : public QObject
+{
+    Q_OBJECT
+private slots:
+    void floatAsHalfFloat_data();
+    void floatAsHalfFloat();
+    void halfFloat_data();
+    void halfFloat();
+    void floatAsHalfFloatCloseToZero_data();
+    void floatAsHalfFloatCloseToZero();
+    void floatAsHalfFloatNaN();
+    void fixed_data();
+    void fixed();
+    void strings_data();
+    void strings() { fixed(); }
+    void arraysAndMaps_data();
+    void arraysAndMaps() { fixed(); }
+    void tags_data();
+    void tags();
+    void arrays_data() { tags_data(); }
+    void arrays();
+    void maps_data() { tags_data(); }
+    void maps();
+
+    void writerApi_data() { tags_data(); }
+    void writerApi();
+    void writerApiFail_data() { tags_data(); }
+    void writerApiFail();
+    void shortBuffer_data() { tags_data(); }
+    void shortBuffer();
+    void tooShortArrays_data() { tags_data(); }
+    void tooShortArrays();
+    void tooShortMaps_data() { tags_data(); }
+    void tooShortMaps();
+    void tooBigArrays_data() { tags_data(); }
+    void tooBigArrays();
+    void tooBigMaps_data() { tags_data(); }
+    void tooBigMaps();
+    void illegalSimpleType_data();
+    void illegalSimpleType();
+};
+
+#include "tst_encoder.moc"
+#include "data.cpp"
+
+static inline bool isOomError(CborError err)
+{
+    return err == CborErrorOutOfMemory;
+}
+
+CborError encodeVariant(CborEncoder *encoder, const QVariant &v)
+{
+    int type = v.userType();
+    switch (type) {
+    case QVariant::Int:
+    case QVariant::LongLong:
+        return cbor_encode_int(encoder, v.toLongLong());
+
+    case QVariant::UInt:
+    case QVariant::ULongLong:
+        return cbor_encode_uint(encoder, v.toULongLong());
+
+    case QVariant::Bool:
+        return cbor_encode_boolean(encoder, v.toBool());
+
+    case QVariant::Invalid:
+        return cbor_encode_undefined(encoder);
+
+    case QMetaType::VoidStar:
+        return cbor_encode_null(encoder);
+
+    case QVariant::Double:
+        return cbor_encode_double(encoder, v.toDouble());
+
+    case QMetaType::Float:
+        return cbor_encode_float(encoder, v.toFloat());
+
+    case QVariant::String: {
+        QByteArray string = v.toString().toUtf8();
+        return cbor_encode_text_string(encoder, string.constData(), string.length());
+    }
+
+    case QVariant::ByteArray: {
+        QByteArray string = v.toByteArray();
+        return cbor_encode_byte_string(encoder, reinterpret_cast<const quint8 *>(string.constData()), string.length());
+    }
+
+    default:
+        if (type == qMetaTypeId<NegativeInteger>())
+            return cbor_encode_negative_int(encoder, v.value<NegativeInteger>().abs);
+        if (type == qMetaTypeId<SimpleType>())
+            return cbor_encode_simple_value(encoder, v.value<SimpleType>().type);
+#if QT_VERSION < QT_VERSION_CHECK(5, 9, 0)
+        if (type == qMetaTypeId<Float16Standin>())
+            return cbor_encode_half_float(encoder, v.constData());
+#else
+        if (type == qMetaTypeId<qfloat16>())
+            return cbor_encode_half_float(encoder, v.constData());
+#endif
+        if (type == qMetaTypeId<Tag>()) {
+            CborError err = cbor_encode_tag(encoder, v.value<Tag>().tag);
+            if (err && !isOomError(err))
+                return err;
+            return static_cast<CborError>(err | encodeVariant(encoder, v.value<Tag>().tagged));
+        }
+        if (type == QVariant::List || type == qMetaTypeId<IndeterminateLengthArray>()) {
+            CborEncoder sub;
+            QVariantList list = v.toList();
+            size_t len = list.length();
+            if (type == qMetaTypeId<IndeterminateLengthArray>()) {
+                len = CborIndefiniteLength;
+                list = v.value<IndeterminateLengthArray>();
+            }
+            CborError err = cbor_encoder_create_array(encoder, &sub, len);
+            if (err && !isOomError(err))
+                return err;
+            foreach (const QVariant &v2, list) {
+                err = static_cast<CborError>(err | encodeVariant(&sub, v2));
+                if (err && !isOomError(err))
+                    return err;
+            }
+            return cbor_encoder_close_container_checked(encoder, &sub);
+        }
+        if (type == qMetaTypeId<Map>() || type == qMetaTypeId<IndeterminateLengthMap>()) {
+            CborEncoder sub;
+            Map map = v.value<Map>();
+            size_t len = map.length();
+            if (type == qMetaTypeId<IndeterminateLengthMap>()) {
+                len = CborIndefiniteLength;
+                map = v.value<IndeterminateLengthMap>();
+            }
+            CborError err = cbor_encoder_create_map(encoder, &sub, len);
+            if (err && !isOomError(err))
+                return err;
+            for (auto pair : map) {
+                err = static_cast<CborError>(err | encodeVariant(&sub, pair.first));
+                if (err && !isOomError(err))
+                    return err;
+                err = static_cast<CborError>(err | encodeVariant(&sub, pair.second));
+                if (err && !isOomError(err))
+                    return err;
+            }
+            return cbor_encoder_close_container_checked(encoder, &sub);
+        }
+    }
+    return CborErrorUnknownType;
+}
+
+template <typename Input, typename FnUnderTest>
+void encodeOne(Input input, FnUnderTest fn_under_test, QByteArray &buffer, CborError &error)
+{
+    uint8_t *bufptr = reinterpret_cast<quint8 *>(buffer.data());
+    CborEncoder encoder;
+    cbor_encoder_init(&encoder, bufptr, buffer.length(), 0);
+
+    error = fn_under_test(&encoder, input);
+
+    if (error == CborNoError) {
+        QCOMPARE(encoder.remaining, size_t(1));
+        QCOMPARE(cbor_encoder_get_extra_bytes_needed(&encoder), size_t(0));
+
+        buffer.resize(int(cbor_encoder_get_buffer_size(&encoder, bufptr)));
+    }
+}
+
+template <typename Input, typename FnUnderTest>
+void compare(Input input, FnUnderTest fn_under_test, const QByteArray &output)
+{
+    QByteArray buffer(output.length(), Qt::Uninitialized);
+    CborError error;
+
+    encodeOne(input, fn_under_test, buffer, error);
+    if (QTest::currentTestFailed())
+        return;
+
+    QCOMPARE(error, CborNoError);
+    QCOMPARE(buffer, output);
+}
+
+void compare(const QVariant &input, const QByteArray &output)
+{
+    compare(input, encodeVariant, output);
+}
+
+void tst_Encoder::floatAsHalfFloat_data()
+{
+    addHalfFloat();
+}
+
+void tst_Encoder::floatAsHalfFloat()
+{
+    QFETCH(unsigned, rawInput);
+    QFETCH(double, floatInput);
+    QFETCH(QByteArray, output);
+
+    if (rawInput == 0U || rawInput == 0x8000U)
+        QSKIP("zero values are out of scope of this test case", QTest::SkipSingle);
+
+    if (qIsNaN(floatInput))
+        QSKIP("NaN values are out of scope of this test case", QTest::SkipSingle);
+
+    output.prepend('\xf9');
+
+    compare((float)floatInput, cbor_encode_float_as_half_float, output);
+}
+
+void tst_Encoder::halfFloat_data()
+{
+    addHalfFloat();
+}
+
+void tst_Encoder::halfFloat()
+{
+    QFETCH(unsigned, rawInput);
+    QFETCH(QByteArray, output);
+
+    uint16_t v = (uint16_t)rawInput;
+    output.prepend('\xf9');
+
+    compare(&v, cbor_encode_half_float, output);
+}
+
+void tst_Encoder::floatAsHalfFloatCloseToZero_data()
+{
+    QTest::addColumn<double>("floatInput");
+
+    QTest::newRow("+0") << 0.0;
+    QTest::newRow("-0") << -0.0;
+
+    QTest::newRow("below min.denorm") << ldexp(1.0, -14) * ldexp(1.0, -11);
+    QTest::newRow("above -min.denorm") << ldexp(-1.0, -14) * ldexp(1.0, -11);
+}
+
+void tst_Encoder::floatAsHalfFloatCloseToZero()
+{
+    QFETCH(double, floatInput);
+
+    QByteArray buffer(4, Qt::Uninitialized);
+    CborError error;
+
+    encodeOne((float)floatInput, cbor_encode_float_as_half_float, buffer, error);
+
+    QCOMPARE(error, CborNoError);
+
+    QVERIFY2(
+        buffer == raw("\xf9\x00\x00") || buffer == raw("\xf9\x80\x00"),
+        "Got value " + QByteArray::number(floatInput) + " encoded to: " + buffer);
+}
+
+void tst_Encoder::floatAsHalfFloatNaN()
+{
+    QByteArray buffer(4, Qt::Uninitialized);
+    CborError error;
+
+    encodeOne(myNaNf(), cbor_encode_float_as_half_float, buffer, error);
+
+    QCOMPARE(error, CborNoError);
+    QCOMPARE(buffer.size(), 3);
+
+    uint8_t ini_byte = (uint8_t)buffer[0],
+        exp = (uint8_t)buffer[1] & 0x7cU,
+        manth = (uint8_t)buffer[1] & 0x03U,
+        mantl = (uint8_t)buffer[2];
+
+    QCOMPARE((unsigned)ini_byte, 0xf9U);
+    QCOMPARE((unsigned)exp, 0x7cU);
+    QVERIFY((manth | mantl) != 0);
+}
+
+void tst_Encoder::fixed_data()
+{
+    addColumns();
+    addFixedData();
+}
+
+void tst_Encoder::fixed()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+    compare(input, output);
+}
+
+void tst_Encoder::strings_data()
+{
+    addColumns();
+    addStringsData();
+}
+
+void tst_Encoder::arraysAndMaps_data()
+{
+    addColumns();
+    addArraysAndMaps();
+}
+
+void tst_Encoder::tags_data()
+{
+    addColumns();
+    addFixedData();
+    addStringsData();
+    addArraysAndMaps();
+}
+
+void tst_Encoder::tags()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+
+    compare(QVariant::fromValue(Tag{1, input}), "\xc1" + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(QVariant::fromValue(Tag{24, input}), "\xd8\x18" + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(QVariant::fromValue(Tag{255, input}), "\xd8\xff" + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(QVariant::fromValue(Tag{256, input}), raw("\xd9\1\0") + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(QVariant::fromValue(Tag{CborSignatureTag, input}), raw("\xd9\xd9\xf7") + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(QVariant::fromValue(Tag{65535, input}), raw("\xd9\xff\xff") + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(QVariant::fromValue(Tag{65536, input}), raw("\xda\0\1\0\0") + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(QVariant::fromValue(Tag{UINT32_MAX, input}), raw("\xda\xff\xff\xff\xff") + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(QVariant::fromValue(Tag{UINT32_MAX + Q_UINT64_C(1), input}), raw("\xdb\0\0\0\1\0\0\0\0") + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(QVariant::fromValue(Tag{UINT64_MAX, input}), raw("\xdb\xff\xff\xff\xff\xff\xff\xff\xff") + output);
+    if (QTest::currentTestFailed()) return;
+
+    // nested tags
+    compare(QVariant::fromValue(Tag{1, QVariant::fromValue(Tag{1, input})}), "\xc1\xc1" + output);
+}
+
+void tst_Encoder::arrays()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+
+    compare(make_list(input), "\x81" + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(make_list(input, input), "\x82" + output + output);
+    if (QTest::currentTestFailed()) return;
+
+    {
+        QVariantList list{input};
+        QByteArray longoutput = output;
+
+        // make a list with 32 elements (1 << 5)
+        for (int i = 0; i < 5; ++i) {
+            list += list;
+            longoutput += longoutput;
+        }
+        compare(list, "\x98\x20" + longoutput);
+        if (QTest::currentTestFailed()) return;
+
+        // now 256 elements (32 << 3)
+        for (int i = 0; i < 3; ++i) {
+            list += list;
+            longoutput += longoutput;
+        }
+        compare(list, raw("\x99\1\0") + longoutput);
+        if (QTest::currentTestFailed()) return;
+    }
+
+    // nested lists
+    compare(make_list(make_list(input)), "\x81\x81" + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(make_list(make_list(input, input)), "\x81\x82" + output + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(make_list(make_list(input), input), "\x82\x81" + output + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(make_list(make_list(input), make_list(input)), "\x82\x81" + output + "\x81" + output);
+}
+
+void tst_Encoder::maps()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+
+    compare(make_map({{1, input}}), "\xa1\1" + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(make_map({{1, input}, {input, 24}}), "\xa2\1" + output + output + "\x18\x18");
+    if (QTest::currentTestFailed()) return;
+
+    compare(make_map({{input, input}}), "\xa1" + output + output);
+    if (QTest::currentTestFailed()) return;
+
+    {
+        Map map{{1, input}};
+        QByteArray longoutput = "\1" + output;
+
+        // make a map with 32 elements (1 << 5)
+        for (int i = 0; i < 5; ++i) {
+            map += map;
+            longoutput += longoutput;
+        }
+        compare(QVariant::fromValue(map), "\xb8\x20" + longoutput);
+        if (QTest::currentTestFailed()) return;
+
+        // now 256 elements (32 << 3)
+        for (int i = 0; i < 3; ++i) {
+            map += map;
+            longoutput += longoutput;
+        }
+        compare(QVariant::fromValue(map), raw("\xb9\1\0") + longoutput);
+        if (QTest::currentTestFailed()) return;
+    }
+
+    // nested maps
+    compare(make_map({{1, make_map({{2, input}})}}), "\xa1\1\xa1\2" + output);
+    if (QTest::currentTestFailed()) return;
+
+    compare(make_map({{1, make_map({{2, input}, {input, false}})}}), "\xa1\1\xa2\2" + output + output + "\xf4");
+    if (QTest::currentTestFailed()) return;
+
+    compare(make_map({{1, make_map({{2, input}})}, {input, false}}), "\xa2\1\xa1\2" + output + output + "\xf4");
+    if (QTest::currentTestFailed()) return;
+}
+
+void tst_Encoder::writerApi()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+
+    // instead of writing to a QByteArray like all other tests, write to a QBuffer
+    QBuffer buffer;
+    buffer.open(QIODevice::ReadWrite);
+    auto callback = [](void *token, const void *data, size_t len, CborEncoderAppendType) {
+        auto buffer = static_cast<QBuffer *>(token);
+        buffer->write(static_cast<const char *>(data), len);
+        return CborNoError;
+    };
+
+    CborEncoder encoder;
+    cbor_encoder_init_writer(&encoder, callback, &buffer);
+    QCOMPARE(encodeVariant(&encoder, input), CborNoError);
+
+    buffer.reset();
+    QCOMPARE(buffer.readAll(), output);
+}
+
+void tst_Encoder::writerApiFail()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+
+    // same as above, but we'll produce an error during writing and we expect
+    // it to be returned
+    int callCount = 0;
+    auto callback = [](void *token, const void *, size_t, CborEncoderAppendType) {
+        ++*static_cast<int *>(token);
+        return CborErrorIO;
+    };
+
+    CborEncoder encoder;
+    cbor_encoder_init_writer(&encoder, callback, &callCount);
+    QCOMPARE(encodeVariant(&encoder, input), CborErrorIO);
+    QCOMPARE(callCount, 1);
+}
+
+void tst_Encoder::shortBuffer()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+    QByteArray buffer(output.length(), Qt::Uninitialized);
+
+    for (int len = 0; len < output.length(); ++len) {
+        CborEncoder encoder;
+        cbor_encoder_init(&encoder, reinterpret_cast<quint8 *>(buffer.data()), len, 0);
+        QCOMPARE(encodeVariant(&encoder, input), CborErrorOutOfMemory);
+        QVERIFY(cbor_encoder_get_extra_bytes_needed(&encoder) != 0);
+        QCOMPARE(len + cbor_encoder_get_extra_bytes_needed(&encoder), size_t(output.length()));
+    }
+}
+
+void tst_Encoder::tooShortArrays()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+    QByteArray buffer(output.length() + 1, Qt::Uninitialized);
+
+    CborEncoder encoder, container;
+    cbor_encoder_init(&encoder, reinterpret_cast<quint8 *>(buffer.data()), buffer.length(), 0);
+    QCOMPARE(cbor_encoder_create_array(&encoder, &container, 2), CborNoError);
+    QCOMPARE(encodeVariant(&container, input), CborNoError);
+    QCOMPARE(container.remaining, size_t(2));
+    QCOMPARE(cbor_encoder_close_container_checked(&encoder, &container), CborErrorTooFewItems);
+}
+
+void tst_Encoder::tooShortMaps()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+    QByteArray buffer(output.length() + 1, Qt::Uninitialized);
+
+    CborEncoder encoder, container;
+    cbor_encoder_init(&encoder, reinterpret_cast<quint8 *>(buffer.data()), buffer.length(), 0);
+    QCOMPARE(cbor_encoder_create_map(&encoder, &container, 2), CborNoError);
+    QCOMPARE(encodeVariant(&container, input), CborNoError);
+    QCOMPARE(container.remaining, size_t(4));
+    QCOMPARE(cbor_encoder_close_container_checked(&encoder, &container), CborErrorTooFewItems);
+}
+
+void tst_Encoder::tooBigArrays()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+    QByteArray buffer(output.length() * 2 + 1, Qt::Uninitialized);
+
+    CborEncoder encoder, container;
+    cbor_encoder_init(&encoder, reinterpret_cast<quint8 *>(buffer.data()), buffer.length(), 0);
+    QCOMPARE(cbor_encoder_create_array(&encoder, &container, 1), CborNoError);
+    QCOMPARE(encodeVariant(&container, input), CborNoError);
+    QCOMPARE(encodeVariant(&container, input), CborNoError);
+    QCOMPARE(container.remaining, size_t(0));
+    QCOMPARE(cbor_encoder_close_container_checked(&encoder, &container), CborErrorTooManyItems);
+}
+
+void tst_Encoder::tooBigMaps()
+{
+    QFETCH(QVariant, input);
+    QFETCH(QByteArray, output);
+    QByteArray buffer(output.length() * 3 + 1, Qt::Uninitialized);
+
+    CborEncoder encoder, container;
+    cbor_encoder_init(&encoder, reinterpret_cast<quint8 *>(buffer.data()), buffer.length(), 0);
+    QCOMPARE(cbor_encoder_create_map(&encoder, &container, 1), CborNoError);
+    QCOMPARE(encodeVariant(&container, input), CborNoError);
+    QCOMPARE(encodeVariant(&container, input), CborNoError);
+    QCOMPARE(encodeVariant(&container, input), CborNoError);
+    QCOMPARE(container.remaining, size_t(0));
+    QCOMPARE(cbor_encoder_close_container_checked(&encoder, &container), CborErrorTooManyItems);
+}
+
+void tst_Encoder::illegalSimpleType_data()
+{
+    QTest::addColumn<int>("type");
+    QTest::newRow("half-float") << 25;
+    QTest::newRow("float") << 26;
+    QTest::newRow("double") << 27;
+    QTest::newRow("28") << 28;
+    QTest::newRow("29") << 29;
+    QTest::newRow("30") << 30;
+    QTest::newRow("31") << 31;
+}
+
+void tst_Encoder::illegalSimpleType()
+{
+    QFETCH(int, type);
+
+    quint8 buf[2];
+    CborEncoder encoder;
+    cbor_encoder_init(&encoder, buf, sizeof(buf), 0);
+    QCOMPARE(cbor_encode_simple_value(&encoder, type), CborErrorIllegalSimpleType);
+}
+
+QTEST_MAIN(tst_Encoder)

lib/cbor/tinycbor/tests/parser/data.cpp

@@ -0,0 +1,607 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#include <QtTest>
+#include <limits>
+#include <cbor.h>
+
+Q_DECLARE_METATYPE(CborError)
+
+template <size_t N> QByteArray raw(const char (&data)[N])
+{
+    return QByteArray::fromRawData(data, N - 1);
+}
+
+void addIntegers()
+{
+    QTest::addColumn<QByteArray>("data");
+    QTest::addColumn<quint64>("expectedRaw");
+    QTest::addColumn<qint64>("expectedValue");
+    QTest::addColumn<bool>("isNegative");
+    QTest::addColumn<bool>("inInt64Range");
+
+    // unsigned integers
+    QTest::newRow("0") << raw("\x00") << Q_UINT64_C(0) << Q_INT64_C(0) << false << true;
+    QTest::newRow("1") << raw("\x01") << Q_UINT64_C(1) << Q_INT64_C(1) << false << true;
+    QTest::newRow("10") << raw("\x0a") << Q_UINT64_C(10) << Q_INT64_C(10) << false << true;
+    QTest::newRow("23") << raw("\x17") << Q_UINT64_C(23) << Q_INT64_C(23) << false << true;
+    QTest::newRow("24") << raw("\x18\x18") << Q_UINT64_C(24) << Q_INT64_C(24) << false << true;
+    QTest::newRow("UINT8_MAX") << raw("\x18\xff") << Q_UINT64_C(255) << Q_INT64_C(255) << false << true;
+    QTest::newRow("UINT8_MAX+1") << raw("\x19\x01\x00") << Q_UINT64_C(256) << Q_INT64_C(256) << false << true;
+    QTest::newRow("UINT16_MAX") << raw("\x19\xff\xff") << Q_UINT64_C(65535) << Q_INT64_C(65535) << false << true;
+    QTest::newRow("UINT16_MAX+1") << raw("\x1a\0\1\x00\x00") << Q_UINT64_C(65536) << Q_INT64_C(65536) << false << true;
+    QTest::newRow("UINT32_MAX") << raw("\x1a\xff\xff\xff\xff") << Q_UINT64_C(4294967295) << Q_INT64_C(4294967295) << false << true;
+    QTest::newRow("UINT32_MAX+1") << raw("\x1b\0\0\0\1\0\0\0\0") << Q_UINT64_C(4294967296) << Q_INT64_C(4294967296) << false << true;
+    QTest::newRow("INT64_MAX") << raw("\x1b" "\x7f\xff\xff\xff" "\xff\xff\xff\xff")
+                                << quint64(std::numeric_limits<qint64>::max())
+                                << std::numeric_limits<qint64>::max() << false << true;
+    QTest::newRow("UINT64_MAX") << raw("\x1b" "\xff\xff\xff\xff" "\xff\xff\xff\xff")
+                                << std::numeric_limits<quint64>::max() << qint64(-123456) << false << false;
+
+    // negative integers
+    QTest::newRow("-1") << raw("\x20") << Q_UINT64_C(0) << Q_INT64_C(-1) << true << true;
+    QTest::newRow("-2") << raw("\x21") << Q_UINT64_C(1) << Q_INT64_C(-2) << true << true;
+    QTest::newRow("-24") << raw("\x37") << Q_UINT64_C(23) << Q_INT64_C(-24) << true << true;
+    QTest::newRow("-25") << raw("\x38\x18") << Q_UINT64_C(24) << Q_INT64_C(-25) << true << true;
+    QTest::newRow("-UINT8_MAX") << raw("\x38\xff") << Q_UINT64_C(255) << Q_INT64_C(-256) << true << true;
+    QTest::newRow("-UINT8_MAX-1") << raw("\x39\x01\x00") << Q_UINT64_C(256) << Q_INT64_C(-257) << true << true;
+    QTest::newRow("-UINT16_MAX") << raw("\x39\xff\xff") << Q_UINT64_C(65535) << Q_INT64_C(-65536) << true << true;
+    QTest::newRow("-UINT16_MAX-1") << raw("\x3a\0\1\x00\x00") << Q_UINT64_C(65536) << Q_INT64_C(-65537) << true << true;
+    QTest::newRow("-UINT32_MAX") << raw("\x3a\xff\xff\xff\xff") << Q_UINT64_C(4294967295) << Q_INT64_C(-4294967296) << true << true;
+    QTest::newRow("-UINT32_MAX-1") << raw("\x3b\0\0\0\1\0\0\0\0") << Q_UINT64_C(4294967296) << Q_INT64_C(-4294967297) << true << true;
+    QTest::newRow("INT64_MIN+1") << raw("\x3b\x7f\xff\xff\xff""\xff\xff\xff\xfe")
+                               << quint64(std::numeric_limits<qint64>::max() - 1)
+                               << (std::numeric_limits<qint64>::min() + 1)
+                               << true << true;
+    QTest::newRow("INT64_MIN") << raw("\x3b\x7f\xff\xff\xff""\xff\xff\xff\xff")
+                               << quint64(std::numeric_limits<qint64>::max())
+                               << std::numeric_limits<qint64>::min()
+                               << true << true;
+    QTest::newRow("INT64_MIN-1") << raw("\x3b\x80\0\0\0""\0\0\0\0") << Q_UINT64_C(9223372036854775808) << qint64(-123456) << true << false;
+    QTest::newRow("-UINT64_MAX") << raw("\x3b" "\xff\xff\xff\xff" "\xff\xff\xff\xfe")
+                                 << (std::numeric_limits<quint64>::max() - 1) << qint64(-123456) << true << false;
+    QTest::newRow("-UINT64_MAX+1") << raw("\x3b" "\xff\xff\xff\xff" "\xff\xff\xff\xff")
+                                   << std::numeric_limits<quint64>::max() << qint64(-123456) << true << false;
+}
+
+void addColumns()
+{
+    QTest::addColumn<QByteArray>("data");
+    QTest::addColumn<QString>("expected");
+    QTest::addColumn<int>("n");         // some aux integer, not added in all columns
+}
+
+void addFixedData()
+{
+    // unsigned integers
+    QTest::newRow("0") << raw("\x00") << "0";
+    QTest::newRow("1") << raw("\x01") << "1";
+    QTest::newRow("10") << raw("\x0a") << "10";
+    QTest::newRow("23") << raw("\x17") << "23";
+    QTest::newRow("24") << raw("\x18\x18") << "24";
+    QTest::newRow("UINT8_MAX") << raw("\x18\xff") << "255";
+    QTest::newRow("UINT8_MAX+1") << raw("\x19\x01\x00") << "256";
+    QTest::newRow("UINT16_MAX") << raw("\x19\xff\xff") << "65535";
+    QTest::newRow("UINT16_MAX+1") << raw("\x1a\0\1\x00\x00") << "65536";
+    QTest::newRow("UINT32_MAX") << raw("\x1a\xff\xff\xff\xff") << "4294967295";
+    QTest::newRow("UINT32_MAX+1") << raw("\x1b\0\0\0\1\0\0\0\0") << "4294967296";
+    QTest::newRow("UINT64_MAX") << raw("\x1b" "\xff\xff\xff\xff" "\xff\xff\xff\xff")
+                                << QString::number(std::numeric_limits<uint64_t>::max());
+
+    // negative integers
+    QTest::newRow("-1") << raw("\x20") << "-1";
+    QTest::newRow("-2") << raw("\x21") << "-2";
+    QTest::newRow("-24") << raw("\x37") << "-24";
+    QTest::newRow("-25") << raw("\x38\x18") << "-25";
+    QTest::newRow("-UINT8_MAX") << raw("\x38\xff") << "-256";
+    QTest::newRow("-UINT8_MAX-1") << raw("\x39\x01\x00") << "-257";
+    QTest::newRow("-UINT16_MAX") << raw("\x39\xff\xff") << "-65536";
+    QTest::newRow("-UINT16_MAX-1") << raw("\x3a\0\1\x00\x00") << "-65537";
+    QTest::newRow("-UINT32_MAX") << raw("\x3a\xff\xff\xff\xff") << "-4294967296";
+    QTest::newRow("-UINT32_MAX-1") << raw("\x3b\0\0\0\1\0\0\0\0") << "-4294967297";
+    QTest::newRow("INT64_MIN+1") << raw("\x3b\x7f\xff\xff\xff""\xff\xff\xff\xfe")
+                               << QString::number(std::numeric_limits<int64_t>::min() + 1);
+    QTest::newRow("INT64_MIN") << raw("\x3b\x7f\xff\xff\xff""\xff\xff\xff\xff")
+                               << QString::number(std::numeric_limits<int64_t>::min());
+    QTest::newRow("INT64_MIN-1") << raw("\x3b\x80\0\0\0""\0\0\0\0") << "-9223372036854775809";
+    QTest::newRow("-UINT64_MAX") << raw("\x3b" "\xff\xff\xff\xff" "\xff\xff\xff\xfe")
+                                   << '-' + QString::number(std::numeric_limits<uint64_t>::max());
+    QTest::newRow("-UINT64_MAX+1") << raw("\x3b" "\xff\xff\xff\xff" "\xff\xff\xff\xff")
+                                   << "-18446744073709551616";
+
+    // overlongs
+    QTest::newRow("0*1") << raw("\x18\x00") << "0_0";
+    QTest::newRow("0*2") << raw("\x19\x00\x00") << "0_1";
+    QTest::newRow("0*4") << raw("\x1a\0\0\0\0") << "0_2";
+    QTest::newRow("0*8") << raw("\x1b\0\0\0\0\0\0\0\0") << "0_3";
+    QTest::newRow("-1*1") << raw("\x38\x00") << "-1_0";
+    QTest::newRow("-1*2") << raw("\x39\x00\x00") << "-1_1";
+    QTest::newRow("-1*4") << raw("\x3a\0\0\0\0") << "-1_2";
+    QTest::newRow("-1*8") << raw("\x3b\0\0\0\0\0\0\0\0") << "-1_3";
+
+    QTest::newRow("simple0") << raw("\xe0") << "simple(0)";
+    QTest::newRow("simple19") << raw("\xf3") << "simple(19)";
+    QTest::newRow("false") << raw("\xf4") << "false";
+    QTest::newRow("true") << raw("\xf5") << "true";
+    QTest::newRow("null") << raw("\xf6") << "null";
+    QTest::newRow("undefined") << raw("\xf7") << "undefined";
+    QTest::newRow("simple32") << raw("\xf8\x20") << "simple(32)";
+    QTest::newRow("simple255") << raw("\xf8\xff") << "simple(255)";
+
+    // floating point
+
+    QTest::newRow("0.f16") << raw("\xf9\0\0") << "0.f16";
+    QTest::newRow("0.f") << raw("\xfa\0\0\0\0") << "0.f";
+    QTest::newRow("0.")  << raw("\xfb\0\0\0\0\0\0\0\0") << "0.";
+    QTest::newRow("-1.f16") << raw("\xf9\xbc\x00") << "-1.f16";
+    QTest::newRow("-1.f") << raw("\xfa\xbf\x80\0\0") << "-1.f";
+    QTest::newRow("-1.") << raw("\xfb\xbf\xf0\0\0\0\0\0\0") << "-1.";
+    QTest::newRow("65504.f16") << raw("\xf9\x7b\xff") << "65504.f16";
+    QTest::newRow("16777215.f") << raw("\xfa\x4b\x7f\xff\xff") << "16777215.f";
+    QTest::newRow("16777215.") << raw("\xfb\x41\x6f\xff\xff\xe0\0\0\0") << "16777215.";
+    QTest::newRow("-16777215.f") << raw("\xfa\xcb\x7f\xff\xff") << "-16777215.f";
+    QTest::newRow("-16777215.") << raw("\xfb\xc1\x6f\xff\xff\xe0\0\0\0") << "-16777215.";
+
+    QTest::newRow("0.5f16") << raw("\xf9\x38\0") << "0.5f16";
+    QTest::newRow("0.5f") << raw("\xfa\x3f\0\0\0") << "0.5f";
+    QTest::newRow("0.5") << raw("\xfb\x3f\xe0\0\0\0\0\0\0") << "0.5";
+    QTest::newRow("2.f16^11-1") << raw("\xf9\x67\xff") << "2047.f16";
+    QTest::newRow("2.f^24-1") << raw("\xfa\x4b\x7f\xff\xff") << "16777215.f";
+    QTest::newRow("2.^53-1") << raw("\xfb\x43\x3f\xff\xff""\xff\xff\xff\xff") << "9007199254740991.";
+    QTest::newRow("2.f^64-epsilon") << raw("\xfa\x5f\x7f\xff\xff") << "18446742974197923840.f";
+    QTest::newRow("2.^64-epsilon") << raw("\xfb\x43\xef\xff\xff""\xff\xff\xff\xff") << "18446744073709549568.";
+    QTest::newRow("2.f^64") << raw("\xfa\x5f\x80\0\0") << "1.8446744073709552e+19f";
+    QTest::newRow("2.^64") << raw("\xfb\x43\xf0\0\0\0\0\0\0") << "1.8446744073709552e+19";
+
+    QTest::newRow("nan_f16") << raw("\xf9\x7e\x00") << "nan";
+    QTest::newRow("nan_f") << raw("\xfa\x7f\xc0\0\0") << "nan";
+    QTest::newRow("nan") << raw("\xfb\x7f\xf8\0\0\0\0\0\0") << "nan";
+    QTest::newRow("-inf_f16") << raw("\xf9\xfc\x00") << "-inf";
+    QTest::newRow("-inf_f") << raw("\xfa\xff\x80\0\0") << "-inf";
+    QTest::newRow("-inf") << raw("\xfb\xff\xf0\0\0\0\0\0\0") << "-inf";
+    QTest::newRow("+inf_f16") << raw("\xf9\x7c\x00") << "inf";
+    QTest::newRow("+inf_f") << raw("\xfa\x7f\x80\0\0") << "inf";
+    QTest::newRow("+inf") << raw("\xfb\x7f\xf0\0\0\0\0\0\0") << "inf";
+
+}
+
+void addNonChunkedStringsData()
+{
+    // byte strings
+    QTest::newRow("emptybytestring") << raw("\x40") << "h''";
+    QTest::newRow("bytestring1") << raw("\x41 ") << "h'20'";
+    QTest::newRow("bytestring1-nul") << raw("\x41\0") << "h'00'";
+    QTest::newRow("bytestring5") << raw("\x45Hello") << "h'48656c6c6f'";
+    QTest::newRow("bytestring24") << raw("\x58\x18""123456789012345678901234")
+                                  << "h'313233343536373839303132333435363738393031323334'";
+    QTest::newRow("bytestring256") << raw("\x59\1\0") + QByteArray(256, '3')
+                                   << "h'" + QString(256 * 2, '3') + '\'';
+
+    // text strings
+    QTest::newRow("emptytextstring") << raw("\x60") << "\"\"";
+    QTest::newRow("textstring1") << raw("\x61 ") << "\" \"";
+    QTest::newRow("textstring1-nul") << raw("\x61\0") << "\"\\u0000\"";
+    QTest::newRow("textstring5") << raw("\x65Hello") << "\"Hello\"";
+    QTest::newRow("textstring24") << raw("\x78\x18""123456789012345678901234")
+                                  << "\"123456789012345678901234\"";
+    QTest::newRow("textstring256") << raw("\x79\1\0") + QByteArray(256, '3')
+                                   << '"' + QString(256, '3') + '"';
+
+    // some strings with UTF-8 content
+    // we had a bug in the pretty dumper - see issue #54
+    QTest::newRow("textstringutf8-2char") << raw("\x62\xc2\xa0") << "\"\\u00A0\"";
+    QTest::newRow("textstringutf8-2char2") << raw("\x64\xc2\xa0\xc2\xa9") << "\"\\u00A0\\u00A9\"";
+    QTest::newRow("textstringutf8-3char") << raw("\x63\xe2\x88\x80") << "\"\\u2200\"";
+    QTest::newRow("textstringutf8-4char") << raw("\x64\xf0\x90\x88\x83") << "\"\\uD800\\uDE03\"";
+
+    // strings with overlong length
+    QTest::newRow("emptybytestring*1") << raw("\x58\x00") << "h''_0";
+    QTest::newRow("emptytextstring*1") << raw("\x78\x00") << "\"\"_0";
+    QTest::newRow("emptybytestring*2") << raw("\x59\x00\x00") << "h''_1";
+    QTest::newRow("emptytextstring*2") << raw("\x79\x00\x00") << "\"\"_1";
+    QTest::newRow("emptybytestring*4") << raw("\x5a\0\0\0\0") << "h''_2";
+    QTest::newRow("emptytextstring*4") << raw("\x7a\0\0\0\0") << "\"\"_2";
+    QTest::newRow("emptybytestring*8") << raw("\x5b\0\0\0\0\0\0\0\0") << "h''_3";
+    QTest::newRow("emptytextstring*8") << raw("\x7b\0\0\0\0\0\0\0\0") << "\"\"_3";
+    QTest::newRow("bytestring5*1") << raw("\x58\x05Hello") << "h'48656c6c6f'_0";
+    QTest::newRow("textstring5*1") << raw("\x78\x05Hello") << "\"Hello\"_0";
+    QTest::newRow("bytestring5*2") << raw("\x59\0\5Hello") << "h'48656c6c6f'_1";
+    QTest::newRow("textstring5*2") << raw("\x79\0\x05Hello") << "\"Hello\"_1";
+    QTest::newRow("bytestring5*4") << raw("\x5a\0\0\0\5Hello") << "h'48656c6c6f'_2";
+    QTest::newRow("textstring5*4") << raw("\x7a\0\0\0\x05Hello") << "\"Hello\"_2";
+    QTest::newRow("bytestring5*8") << raw("\x5b\0\0\0\0\0\0\0\5Hello") << "h'48656c6c6f'_3";
+    QTest::newRow("textstring5*8") << raw("\x7b\0\0\0\0\0\0\0\x05Hello") << "\"Hello\"_3";
+
+}
+
+void addStringsData()
+{
+    addNonChunkedStringsData();
+
+    // strings with undefined length
+    QTest::newRow("_emptybytestring") << raw("\x5f\xff") << "(_ )";
+    QTest::newRow("_emptytextstring") << raw("\x7f\xff") << "(_ )";
+    QTest::newRow("_emptybytestring2") << raw("\x5f\x40\xff") << "(_ h'')";
+    QTest::newRow("_emptytextstring2") << raw("\x7f\x60\xff") << "(_ \"\")";
+    QTest::newRow("_emptybytestring2*1") << raw("\x5f\x58\x00\xff") << "(_ h''_0)";
+    QTest::newRow("_emptytextstring2*1") << raw("\x7f\x78\x00\xff") << "(_ \"\"_0)";
+    QTest::newRow("_emptybytestring3") << raw("\x5f\x40\x40\xff") << "(_ h'', h'')";
+    QTest::newRow("_emptytextstring3") << raw("\x7f\x60\x60\xff") << "(_ \"\", \"\")";
+    QTest::newRow("_emptybytestring3*2") << raw("\x5f\x59\x00\x00\x40\xff") << "(_ h''_1, h'')";
+    QTest::newRow("_emptytextstring3*2") << raw("\x7f\x79\x00\x00\x60\xff") << "(_ \"\"_1, \"\")";
+    QTest::newRow("_bytestring5x2") << raw("\x5f\x43Hel\x42lo\xff") << "(_ h'48656c', h'6c6f')";
+    QTest::newRow("_textstring5x2") << raw("\x7f\x63Hel\x62lo\xff") << "(_ \"Hel\", \"lo\")";
+    QTest::newRow("_bytestring5x2*8*4") << raw("\x5f\x5b\0\0\0\0\0\0\0\3Hel\x5a\0\0\0\2lo\xff") << "(_ h'48656c'_3, h'6c6f'_2)";
+    QTest::newRow("_textstring5x2*8*4") << raw("\x7f\x7b\0\0\0\0\0\0\0\3Hel\x7a\0\0\0\2lo\xff") << "(_ \"Hel\"_3, \"lo\"_2)";
+    QTest::newRow("_bytestring5x5") << raw("\x5f\x41H\x41""e\x41l\x41l\x41o\xff") << "(_ h'48', h'65', h'6c', h'6c', h'6f')";
+    QTest::newRow("_textstring5x5") << raw("\x7f\x61H\x61""e\x61l\x61l\x61o\xff") << "(_ \"H\", \"e\", \"l\", \"l\", \"o\")";
+    QTest::newRow("_bytestring5x6") << raw("\x5f\x41H\x41""e\x40\x41l\x41l\x41o\xff") << "(_ h'48', h'65', h'', h'6c', h'6c', h'6f')";
+    QTest::newRow("_textstring5x6") << raw("\x7f\x61H\x61""e\x61l\x60\x61l\x61o\xff") << "(_ \"H\", \"e\", \"l\", \"\", \"l\", \"o\")";
+}
+
+void addTagsData()
+{
+    // since parseOne() works recursively for tags, we can't test lone tags
+    QTest::newRow("tag0") << raw("\xc0\x00") << "0(0)";
+    QTest::newRow("tag1") << raw("\xc1\x00") << "1(0)";
+    QTest::newRow("tag24") << raw("\xd8\x18\x00") << "24(0)";
+    QTest::newRow("tag255") << raw("\xd8\xff\x00") << "255(0)";
+    QTest::newRow("tag256") << raw("\xd9\1\0\x00") << "256(0)";
+    QTest::newRow("tag65535") << raw("\xd9\xff\xff\x00") << "65535(0)";
+    QTest::newRow("tag65536") << raw("\xda\0\1\0\0\x00") << "65536(0)";
+    QTest::newRow("tagUINT32_MAX-1") << raw("\xda\xff\xff\xff\xff\x00") << "4294967295(0)";
+    QTest::newRow("tagUINT32_MAX") << raw("\xdb\0\0\0\1\0\0\0\0\x00") << "4294967296(0)";
+    QTest::newRow("tagUINT64_MAX") << raw("\xdb" "\xff\xff\xff\xff" "\xff\xff\xff\xff" "\x00")
+                                << QString::number(std::numeric_limits<uint64_t>::max()) + "(0)";
+
+    // overlong tags
+    QTest::newRow("tag0*1") << raw("\xd8\0\x00") << "0_0(0)";
+    QTest::newRow("tag0*2") << raw("\xd9\0\0\x00") << "0_1(0)";
+    QTest::newRow("tag0*4") << raw("\xda\0\0\0\0\x00") << "0_2(0)";
+    QTest::newRow("tag0*8") << raw("\xdb\0\0\0\0\0\0\0\0\x00") << "0_3(0)";
+
+    // tag other things
+    QTest::newRow("unixtime") << raw("\xc1\x1a\x55\x4b\xbf\xd3") << "1(1431027667)";
+    QTest::newRow("rfc3339date") << raw("\xc0\x78\x19" "2015-05-07 12:41:07-07:00")
+                                 << "0(\"2015-05-07 12:41:07-07:00\")";
+    QTest::newRow("tag6+false") << raw("\xc6\xf4") << "6(false)";
+    QTest::newRow("tag25+true") << raw("\xd8\x19\xf5") << "25(true)";
+    QTest::newRow("tag256+null") << raw("\xd9\1\0\xf6") << "256(null)";
+    QTest::newRow("tag65536+simple32") << raw("\xda\0\1\0\0\xf8\x20") << "65536(simple(32))";
+    QTest::newRow("float+unixtime") << raw("\xc1\xfa\x4e\xaa\x97\x80") << "1(1431027712.f)";
+    QTest::newRow("double+unixtime") << raw("\xc1\xfb" "\x41\xd5\x52\xef" "\xf4\xc7\xce\xfe")
+                                     << "1(1431027667.1220088)";
+}
+
+void addEmptyContainersData()
+{
+    QTest::newRow("emptyarray") << raw("\x80") << "[]" << 0;
+    QTest::newRow("emptymap") << raw("\xa0") << "{}" << 0;
+    QTest::newRow("_emptyarray") << raw("\x9f\xff") << "[_ ]" << -1;
+    QTest::newRow("_emptymap") << raw("\xbf\xff") << "{_ }" << -1;
+}
+
+void addMapMixedData()
+{
+    QTest::newRow("map-0-24") << raw("\xa1\0\x18\x18") << "{0: 24}" << 1;
+    QTest::newRow("map-0*1-24") << raw("\xa1\x18\0\x18\x18") << "{0_0: 24}" << 1;
+    QTest::newRow("map-0*1-24*2") << raw("\xa1\x18\0\x19\0\x18") << "{0_0: 24_1}" << 1;
+    QTest::newRow("map-0*4-24*2") << raw("\xa1\x1a\0\0\0\0\x19\0\x18") << "{0_2: 24_1}" << 1;
+    QTest::newRow("map-24-0") << raw("\xa1\x18\x18\0") << "{24: 0}" << 1;
+    QTest::newRow("map-24-0*1") << raw("\xa1\x18\x18\x18\0") << "{24: 0_0}" << 1;
+    QTest::newRow("map-255-65535") << raw("\xa1\x18\xff\x19\xff\xff") << "{255: 65535}" << 1;
+
+    QTest::newRow("_map-0-24") << raw("\xbf\0\x18\x18\xff") << "{_ 0: 24}" << 1;
+    QTest::newRow("_map-0*1-24") << raw("\xbf\x18\0\x18\x18\xff") << "{_ 0_0: 24}" << 1;
+    QTest::newRow("_map-0*1-24*2") << raw("\xbf\x18\0\x19\0\x18\xff") << "{_ 0_0: 24_1}" << 1;
+    QTest::newRow("_map-0*4-24*2") << raw("\xbf\x1a\0\0\0\0\x19\0\x18\xff") << "{_ 0_2: 24_1}" << 1;
+    QTest::newRow("_map-24-0") << raw("\xbf\x18\x18\0\xff") << "{_ 24: 0}" << 1;
+    QTest::newRow("_map-24-0*1") << raw("\xbf\x18\x18\x18\0\xff") << "{_ 24: 0_0}" << 1;
+    QTest::newRow("_map-255-65535") << raw("\xbf\x18\xff\x19\xff\xff\xff") << "{_ 255: 65535}" << 1;
+}
+
+void addChunkedStringData()
+{
+    QTest::addColumn<QByteArray>("data");
+    QTest::addColumn<QString>("concatenated");
+    QTest::addColumn<QStringList>("chunks");
+
+    // non-chunked:
+    QTest::newRow("emptybytestring") << raw("\x40") << "h''" << QStringList{"h''"};
+    QTest::newRow("bytestring1") << raw("\x41 ") << "h'20'" << QStringList{"h'20'"};
+    QTest::newRow("emptytextstring") << raw("\x60") << "\"\"" << QStringList{"\"\""};
+    QTest::newRow("textstring1") << raw("\x61 ") << "\" \"" << QStringList{"\" \""};
+
+    // empty chunked:
+    QTest::newRow("_emptybytestring") << raw("\x5f\xff") << "h''" << QStringList{};
+    QTest::newRow("_emptytextstring") << raw("\x7f\xff") << "\"\"" << QStringList{};
+    QTest::newRow("_emptybytestring2") << raw("\x5f\x40\xff") << "h''" << QStringList{"h''"};
+    QTest::newRow("_emptytextstring2") << raw("\x7f\x60\xff") << "\"\"" << QStringList{"\"\""};
+    QTest::newRow("_emptybytestring3") << raw("\x5f\x40\x40\xff") << "h''" << QStringList{"h''", "h''"};
+    QTest::newRow("_emptytextstring3") << raw("\x7f\x60\x60\xff") << "\"\"" << QStringList{"\"\"", "\"\""};
+
+    // regular chunks
+    QTest::newRow("_bytestring1") << raw("\x5f\x41 \xff") << "h'20'" << QStringList{"h'20'"};
+    QTest::newRow("_bytestring2") << raw("\x5f\x41 \x41z\xff") << "h'207a'" << QStringList{"h'20'", "h'7a'"};
+    QTest::newRow("_bytestring3") << raw("\x5f\x41 \x58\x18""123456789012345678901234\x41z\xff")
+                                  << "h'203132333435363738393031323334353637383930313233347a'"
+                                  << QStringList{"h'20'", "h'313233343536373839303132333435363738393031323334'", "h'7a'"};
+
+    QTest::newRow("_textstring1") << raw("\x7f\x61 \xff") << "\" \"" << QStringList{"\" \""};
+    QTest::newRow("_textstring2") << raw("\x7f\x61 \x61z\xff") << "\" z\"" << QStringList{"\" \"", "\"z\""};
+    QTest::newRow("_textstring3") << raw("\x7f\x61 \x78\x18""123456789012345678901234\x61z\xff")
+                                  << "\" 123456789012345678901234z\""
+                                  << QStringList{"\" \"", "\"123456789012345678901234\"", "\"z\""};
+}
+
+void addValidationColumns()
+{
+    QTest::addColumn<QByteArray>("data");
+    QTest::addColumn<int>("flags");     // future
+    QTest::addColumn<CborError>("expectedError");
+}
+
+void addValidationData(size_t minInvalid = ~size_t(0))
+{
+    // illegal numbers are future extension points
+    QTest::newRow("illegal-number-in-unsigned-1") << raw("\x81\x1c") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-unsigned-2") << raw("\x81\x1d") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-unsigned-3") << raw("\x81\x1e") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-unsigned-4") << raw("\x81\x1f") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-negative-1") << raw("\x81\x3c") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-negative-2") << raw("\x81\x3d") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-negative-3") << raw("\x81\x3e") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-negative-4") << raw("\x81\x3f") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-bytearray-length-1") << raw("\x81\x5c") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-bytearray-length-2") << raw("\x81\x5d") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-bytearray-length-3") << raw("\x81\x5e") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-string-length-1") << raw("\x81\x7c") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-string-length-2") << raw("\x81\x7d") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-string-length-3") << raw("\x81\x7e") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-array-length-1") << raw("\x81\x9c") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-array-length-2") << raw("\x81\x9d") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-array-length-3") << raw("\x81\x9e") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-map-length-1") << raw("\x81\xbc") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-map-length-2") << raw("\x81\xbd") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-map-length-3") << raw("\x81\xbe") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-tag-1") << raw("\x81\xdc") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-tag-2") << raw("\x81\xdd") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-tag-3") << raw("\x81\xde") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("illegal-number-in-tag-4") << raw("\x81\xdf") << 0 << CborErrorIllegalNumber;
+
+    QTest::newRow("unsigned-too-short-1-0") << raw("\x81\x18") << 0 << CborErrorUnexpectedEOF;   // requires 1 byte, 0 given
+    QTest::newRow("unsigned-too-short-2-0") << raw("\x81\x19") << 0 << CborErrorUnexpectedEOF;   // requires 2 bytes, 0 given
+    QTest::newRow("unsigned-too-short-2-1") << raw("\x81\x19\x01") << 0 << CborErrorUnexpectedEOF; // etc
+    QTest::newRow("unsigned-too-short-4-0") << raw("\x81\x1a") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("unsigned-too-short-4-3") << raw("\x81\x1a\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("unsigned-too-short-8-0") << raw("\x81\x1b") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("unsigned-too-short-8-7") << raw("\x81\x1b\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("negative-length-too-short-1-0") << raw("\x81\x38") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("negative-length-too-short-2-0") << raw("\x81\x39") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("negative-length-too-short-2-1") << raw("\x81\x39\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("negative-length-too-short-4-0") << raw("\x81\x3a") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("negative-length-too-short-4-3") << raw("\x81\x3a\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("negative-length-too-short-8-0") << raw("\x81\x3b") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("negative-length-too-short-8-7") << raw("\x81\x3b\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-length-too-short-1-0") << raw("\x81\x58") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-length-too-short-2-0") << raw("\x81\x59") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-length-too-short-2-1") << raw("\x81\x59\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-length-too-short-4-0") << raw("\x81\x5a") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-length-too-short-4-3") << raw("\x81\x5a\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-length-too-short-8-0") << raw("\x81\x5b") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-length-too-short-8-7") << raw("\x81\x5b\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-length-too-short-1-0") << raw("\x81\x78") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-length-too-short-2-0") << raw("\x81\x79") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-length-too-short-2-1") << raw("\x81\x79\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-length-too-short-4-0") << raw("\x81\x7a") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-length-too-short-4-3") << raw("\x81\x7a\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-length-too-short-8-0") << raw("\x81\x7b") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-length-too-short-8-7") << raw("\x81\x7b\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-length-too-short-1-0") << raw("\x81\x5f\x58") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-length-too-short-2-0") << raw("\x81\x5f\x59") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-length-too-short-2-1") << raw("\x81\x5f\x59\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-length-too-short-4-0") << raw("\x81\x5f\x5a") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-length-too-short-4-3") << raw("\x81\x5f\x5a\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-length-too-short-8-0") << raw("\x81\x5f\x5b") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-length-too-short-8-7") << raw("\x81\x5f\x5b\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-length-too-short-1-0") << raw("\x81\x7f\x78") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-length-too-short-2-0") << raw("\x81\x7f\x79") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-length-too-short-2-1") << raw("\x81\x7f\x79\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-length-too-short-4-0") << raw("\x81\x7f\x7a") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-length-too-short-4-3") << raw("\x81\x7f\x7a\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-length-too-short-8-0") << raw("\x81\x7f\x7b") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-length-too-short-8-7") << raw("\x81\x7f\x7b\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-2-length-too-short-1-0") << raw("\x81\x5f\x40\x58") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-2-length-too-short-2-0") << raw("\x81\x5f\x40\x59") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-2-length-too-short-2-1") << raw("\x81\x5f\x40\x59\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-2-length-too-short-4-0") << raw("\x81\x5f\x40\x5a") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-2-length-too-short-4-3") << raw("\x81\x5f\x40\x5a\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-2-length-too-short-8-0") << raw("\x81\x5f\x40\x5b") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-2-length-too-short-8-7") << raw("\x81\x5f\x40\x5b\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-2-length-too-short-1-0") << raw("\x81\x7f\x60\x78") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-2-length-too-short-2-0") << raw("\x81\x7f\x60\x79") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-2-length-too-short-2-1") << raw("\x81\x7f\x60\x79\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-2-length-too-short-4-0") << raw("\x81\x7f\x60\x7a") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-2-length-too-short-4-3") << raw("\x81\x7f\x60\x7a\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-2-length-too-short-8-0") << raw("\x81\x7f\x60\x7b") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-2-length-too-short-8-7") << raw("\x81\x7f\x60\x7b\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("array-length-too-short-1-0") << raw("\x81\x98") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("array-length-too-short-2-0") << raw("\x81\x99") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("array-length-too-short-2-1") << raw("\x81\x99\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("array-length-too-short-4-0") << raw("\x81\x9a") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("array-length-too-short-4-3") << raw("\x81\x9a\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("array-length-too-short-8-0") << raw("\x81\x9b") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("array-length-too-short-8-7") << raw("\x81\x9b\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-length-too-short-1-0") << raw("\x81\xb8") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-length-too-short-2-0") << raw("\x81\xb9") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-length-too-short-2-1") << raw("\x81\xb9\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-length-too-short-4-0") << raw("\x81\xba") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-length-too-short-4-3") << raw("\x81\xba\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-length-too-short-8-0") << raw("\x81\xbb") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-length-too-short-8-7") << raw("\x81\xbb\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("tag-too-short-1-0") << raw("\x81\xd8") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("tag-too-short-2-0") << raw("\x81\xd9") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("tag-too-short-2-1") << raw("\x81\xd9\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("tag-too-short-4-0") << raw("\x81\xda") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("tag-too-short-4-3") << raw("\x81\xda\x01\x02\x03") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("tag-too-short-8-0") << raw("\x81\xdb") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("tag-too-short-8-7") << raw("\x81\xdb\1\2\3\4\5\6\7") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("fp16-too-short1") << raw("\x81\xf9") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("fp16-too-short2") << raw("\x81\xf9\x00") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("float-too-short1") << raw("\x81\xfa") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("float-too-short2") << raw("\x81\xfa\0\0\0") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("double-too-short1") << raw("\x81\xfb") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("double-too-short2") << raw("\x81\xfb\0\0\0\0\0\0\0") << 0 << CborErrorUnexpectedEOF;
+
+    QTest::newRow("bytearray-too-short1") << raw("\x81\x42z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-too-short2") << raw("\x81\x58\x02z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-too-short3") << raw("\x81\x5a\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-too-short4") << raw("\x81\x5b\0\0\0\0\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-too-short1") << raw("\x81\x62z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-too-short2") << raw("\x81\x78\x02z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-too-short3") << raw("\x81\x7a\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-too-short4") << raw("\x81\x7b\0\0\0\0\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-too-short1") << raw("\x81\x5f\x42z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-too-short2") << raw("\x81\x5f\x58\x02z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-too-short3") << raw("\x81\x5f\x5a\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-too-short4") << raw("\x81\x5f\x5b\0\0\0\0\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-too-short1") << raw("\x81\x7f\x62z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-too-short2") << raw("\x81\x7f\x78\x02z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-too-short3") << raw("\x81\x7f\x7a\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-too-short4") << raw("\x81\x7f\x7b\0\0\0\0\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-too-short1x2") << raw("\x81\x5f\x40\x42z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-too-short2x2") << raw("\x81\x5f\x40\x58\x02z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-too-short3x2") << raw("\x81\x5f\x40\x5a\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-chunked-too-short4x2") << raw("\x81\x5f\x40\x5b\0\0\0\0\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-too-short1x2") << raw("\x81\x7f\x60\x62z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-too-short2x2") << raw("\x81\x7f\x60\x78\x02z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-too-short3x2") << raw("\x81\x7f\x60\x7a\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-chunked-too-short4x2") << raw("\x81\x7f\x60\x7b\0\0\0\0\0\0\0\2z") << 0 << CborErrorUnexpectedEOF;
+
+    QTest::newRow("bytearray-no-break1") << raw("\x81\x5f") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("bytearray-no-break2") << raw("\x81\x5f\x40") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-no-break1") << raw("\x81\x7f") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("string-no-break2") << raw("\x81\x7f\x60") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("array-no-break1") << raw("\x81\x9f") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("array-no-break2") << raw("\x81\x9f\0") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-no-break1") << raw("\x81\xbf") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-no-break2") << raw("\x81\xbf\0\0") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("map-break-after-key") << raw("\x81\xbf\0\xff") << 0 << CborErrorUnexpectedBreak;
+    QTest::newRow("map-break-after-second-key") << raw("\x81\xbf\x64xyzw\x04\x00\xff") << 0 << CborErrorUnexpectedBreak;
+    QTest::newRow("map-break-after-value-tag") << raw("\x81\xbf\0\xc0\xff") << 0 << CborErrorUnexpectedBreak;
+    QTest::newRow("map-break-after-value-tag2") << raw("\x81\xbf\0\xd8\x20\xff") << 0 << CborErrorUnexpectedBreak;
+
+    // check for pointer additions wrapping over the limit of the address space
+    auto wraparoundError = [minInvalid](uint64_t encodedSize) {
+        if (encodedSize > minInvalid)
+            return CborErrorDataTooLarge;
+        return CborErrorUnexpectedEOF;
+    };
+    constexpr uint64_t FourGB = UINT32_MAX + UINT64_C(1);
+    // on 32-bit systems, this is a -1
+    QTest::newRow("bytearray-wraparound1") << raw("\x81\x5a\xff\xff\xff\xff") << 0 << wraparoundError(UINT32_MAX);
+    QTest::newRow("string-wraparound1") << raw("\x81\x7a\xff\xff\xff\xff") << 0 << wraparoundError(UINT32_MAX);
+    // on 32-bit systems, a 4GB addition could be dropped
+    QTest::newRow("bytearray-wraparound2") << raw("\x81\x5b\0\0\0\1\0\0\0\0") << 0 << wraparoundError(FourGB);
+    QTest::newRow("string-wraparound2") << raw("\x81\x7b\0\0\0\1\0\0\0\0") << 0 << wraparoundError(FourGB);
+    // on 64-bit systems, this could be a -1
+    QTest::newRow("bytearray-wraparound3") << raw("\x81\x5b\xff\xff\xff\xff\xff\xff\xff\xff") << 0
+                                           << wraparoundError(UINT64_MAX);
+    QTest::newRow("string-wraparound3") << raw("\x81\x7b\xff\xff\xff\xff\xff\xff\xff\xff") << 0
+                                        << wraparoundError(UINT64_MAX);
+
+    // ditto on chunks
+    QTest::newRow("bytearray-chunk-wraparound1") << raw("\x81\x5f\x5a\xff\xff\xff\xff") << 0 << wraparoundError(UINT32_MAX);
+    QTest::newRow("string-chunk-wraparound1") << raw("\x81\x7f\x7a\xff\xff\xff\xff") << 0 << wraparoundError(UINT32_MAX);
+    // on 32-bit systems, a 4GB addition could be dropped
+    QTest::newRow("bytearray-chunk-wraparound2") << raw("\x81\x5f\x5b\0\0\0\1\0\0\0\0") << 0 << wraparoundError(FourGB);
+    QTest::newRow("string-chunk-wraparound2") << raw("\x81\x7f\x7b\0\0\0\1\0\0\0\0") << 0 << wraparoundError(FourGB);
+    // on 64-bit systems, this could be a -1
+    QTest::newRow("bytearray-chunk-wraparound3") << raw("\x81\x5f\x5b\xff\xff\xff\xff\xff\xff\xff\xff") << 0
+                                                 << wraparoundError(UINT64_MAX);
+    QTest::newRow("string-chunk-wraparound3") << raw("\x81\x7f\x7b\xff\xff\xff\xff\xff\xff\xff\xff") << 0
+                                              << wraparoundError(UINT64_MAX);
+
+    QTest::newRow("eof-after-array") << raw("\x81") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("eof-after-array2") << raw("\x81\x78\x20") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("eof-after-array-element") << raw("\x81\x82\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("eof-after-object") << raw("\x81\xa1") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("eof-after-object2") << raw("\x81\xb8\x20") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("eof-after-object-key") << raw("\x81\xa1\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("eof-after-object-value") << raw("\x81\xa2\x01\x01") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("eof-after-tag") << raw("\x81\xc0") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("eof-after-tag2") << raw("\x81\xd8\x20") << 0 << CborErrorUnexpectedEOF;
+
+    // major type 7 has future types
+    QTest::newRow("future-type-28") << raw("\x81\xfc") << 0 << CborErrorUnknownType;
+    QTest::newRow("future-type-29") << raw("\x81\xfd") << 0 << CborErrorUnknownType;
+    QTest::newRow("future-type-30") << raw("\x81\xfe") << 0 << CborErrorUnknownType;
+    QTest::newRow("unexpected-break") << raw("\x81\xff") << 0 << CborErrorUnexpectedBreak;
+    QTest::newRow("illegal-simple-0") << raw("\x81\xf8\0") << 0 << CborErrorIllegalSimpleType;
+    QTest::newRow("illegal-simple-31") << raw("\x81\xf8\x1f") << 0 << CborErrorIllegalSimpleType;
+
+    // not only too big (UINT_MAX or UINT_MAX+1 in size), but also incomplete
+    if (sizeof(size_t) < sizeof(uint64_t)) {
+        QTest::newRow("bytearray-too-big1") << raw("\x81\x5b\0\0\0\1\0\0\0\0") << 0 << CborErrorDataTooLarge;
+        QTest::newRow("string-too-big1") << raw("\x81\x7b\0\0\0\1\0\0\0\0") << 0 << CborErrorDataTooLarge;
+    }
+    QTest::newRow("array-too-big1") << raw("\x81\x9a\xff\xff\xff\xff\0\0\0\0") << 0 << CborErrorDataTooLarge;
+    QTest::newRow("array-too-big2") << raw("\x81\x9b\0\0\0\1\0\0\0\0") << 0 << CborErrorDataTooLarge;
+    QTest::newRow("object-too-big1") << raw("\x81\xba\xff\xff\xff\xff\0\0\0\0") << 0 << CborErrorDataTooLarge;
+    QTest::newRow("object-too-big2") << raw("\x81\xbb\0\0\0\1\0\0\0\0") << 0 << CborErrorDataTooLarge;
+
+    QTest::newRow("no-break-for-array0") << raw("\x81\x9f") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("no-break-for-array1") << raw("\x81\x9f\x01") << 0 << CborErrorUnexpectedEOF;
+
+    QTest::newRow("no-break-string0") << raw("\x81\x7f") << 0 << CborErrorUnexpectedEOF;
+    QTest::newRow("no-break-string1") << raw("\x81\x7f\x61Z") << 0 << CborErrorUnexpectedEOF;
+
+    QTest::newRow("nested-indefinite-length-bytearrays") << raw("\x81\x5f\x5f\xff\xff") << 0 << CborErrorIllegalNumber;
+    QTest::newRow("nested-indefinite-length-strings") << raw("\x81\x7f\x7f\xff\xff") << 0 << CborErrorIllegalNumber;
+
+    QTest::newRow("string-chunk-unsigned") << raw("\x81\x7f\0\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-negative") << raw("\x81\x7f\x20\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-bytearray") << raw("\x81\x7f\x40\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-array") << raw("\x81\x7f\x80\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-map") << raw("\x81\x7f\xa0\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-tag") << raw("\x81\x7f\xc0\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-tagged-string") << raw("\x81\x7f\xc0\x60\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-simple0") << raw("\x81\x7f\xe0\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-false") << raw("\x81\x7f\xf4\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-true") << raw("\x81\x7f\xf5\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-null") << raw("\x81\x7f\xf6\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("string-chunk-undefined") << raw("\x81\x7f\xf7\xff") << 0 << CborErrorIllegalType;
+
+    QTest::newRow("bytearray-chunk-string") << raw("\x81\x5f\x60\xff") << 0 << CborErrorIllegalType;
+    QTest::newRow("bytearray-chunk-tagged-bytearray") << raw("\x81\x7f\xc0\x40\xff") << 0 << CborErrorIllegalType;
+
+    // RFC 7049 Section 2.2.2 "Indefinite-Length Byte Strings and Text Strings" says
+    //    Text strings with indefinite lengths act the same as byte strings
+    //    with indefinite lengths, except that all their chunks MUST be
+    //    definite-length text strings.  Note that this implies that the bytes
+    //    of a single UTF-8 character cannot be spread between chunks: a new
+    //    chunk can only be started at a character boundary.
+    // This test technically tests the dumper, not the parser.
+    QTest::newRow("string-utf8-chunk-split") << raw("\x81\x7f\x61\xc2\x61\xa0\xff") << 0 << CborErrorInvalidUtf8TextString;
+}

lib/cbor/tinycbor/tests/parser/parser.pro

@@ -0,0 +1,10 @@
+SOURCES += tst_parser.cpp ../../src/cborparser.c
+
+CONFIG += testcase parallel_test c++11
+QT = core testlib
+DEFINES += CBOR_PARSER_MAX_RECURSIONS=16
+
+INCLUDEPATH += ../../src
+msvc: POST_TARGETDEPS = ../../lib/tinycbor.lib
+else: POST_TARGETDEPS += ../../lib/libtinycbor.a
+LIBS += $$POST_TARGETDEPS

lib/cbor/tinycbor/tests/tests.pro

@@ -0,0 +1,3 @@
+TEMPLATE = subdirs
+SUBDIRS = parser encoder c90 cpp tojson
+msvc: SUBDIRS -= tojson

lib/cbor/tinycbor/tests/tojson/tojson.pro

@@ -0,0 +1,8 @@
+CONFIG += testcase parallel_test c++11
+QT = core testlib
+
+SOURCES += tst_tojson.cpp
+INCLUDEPATH += ../../src
+msvc: POST_TARGETDEPS = ../../lib/tinycbor.lib
+else: POST_TARGETDEPS += ../../lib/libtinycbor.a
+LIBS += $$POST_TARGETDEPS

lib/cbor/tinycbor/tests/tojson/tst_tojson.cpp

@@ -0,0 +1,721 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#include <QtTest>
+#include "cbor.h"
+#include "cborjson.h"
+#include <locale.h>
+
+extern "C" FILE *open_memstream(char **bufptr, size_t *sizeptr);
+
+class tst_ToJson : public QObject
+{
+    Q_OBJECT
+private slots:
+    void initTestCase();
+
+    void fixed_data();
+    void fixed();
+    void textstrings_data();
+    void textstrings() { fixed(); }
+    void nonjson_data();
+    void nonjson() { fixed(); }
+    void bytestrings_data();
+    void bytestrings() { fixed(); }
+    void emptyContainers_data();
+    void emptyContainers() { fixed(); }
+    void arrays_data();
+    void arrays();
+    void nestedArrays_data() { arrays_data(); }
+    void nestedArrays();
+    void maps_data() { arrays_data(); }
+    void maps();
+    void nestedMaps_data() { maps_data(); }
+    void nestedMaps();
+    void nonStringKeyMaps_data();
+    void nonStringKeyMaps();
+
+    void tagsToObjects_data();
+    void tagsToObjects();
+    void taggedByteStringsToBase16_data();
+    void taggedByteStringsToBase16();
+    void taggedByteStringsToBase64_data() { taggedByteStringsToBase16_data(); }
+    void taggedByteStringsToBase64();
+    void taggedByteStringsToBigNum_data()  { taggedByteStringsToBase16_data(); }
+    void taggedByteStringsToBigNum();
+    void otherTags_data();
+    void otherTags();
+
+    void metaData_data();
+    void metaData();
+    void metaDataAndTagsToObjects_data() { tagsToObjects_data(); }
+    void metaDataAndTagsToObjects();
+    void metaDataForKeys_data();
+    void metaDataForKeys();
+};
+#include "tst_tojson.moc"
+
+template <size_t N> QByteArray raw(const char (&data)[N])
+{
+    return QByteArray::fromRawData(data, N - 1);
+}
+
+void addColumns()
+{
+    QTest::addColumn<QByteArray>("data");
+    QTest::addColumn<QString>("expected");
+}
+
+void addFixedData()
+{
+    // unsigned integers
+    QTest::newRow("0") << raw("\x00") << "0";
+    QTest::newRow("1") << raw("\x01") << "1";
+    QTest::newRow("2^53-1") << raw("\x1b\0\x1f\xff\xff""\xff\xff\xff\xff") << "9007199254740991";
+    QTest::newRow("2^64-epsilon") << raw("\x1b\xff\xff\xff\xff""\xff\xff\xf8\x00") << "18446744073709549568";
+
+    // negative integers
+    QTest::newRow("-1") << raw("\x20") << "-1";
+    QTest::newRow("-2") << raw("\x21") << "-2";
+    QTest::newRow("-2^53+1") << raw("\x3b\0\x1f\xff\xff""\xff\xff\xff\xfe") << "-9007199254740991";
+    QTest::newRow("-2^64+epsilon") << raw("\x3b\xff\xff\xff\xff""\xff\xff\xf8\x00") << "-18446744073709549568";
+
+    QTest::newRow("false") << raw("\xf4") << "false";
+    QTest::newRow("true") << raw("\xf5") << "true";
+    QTest::newRow("null") << raw("\xf6") << "null";
+
+    QTest::newRow("0.f16") << raw("\xf9\0\0") << "0";
+    QTest::newRow("0.f") << raw("\xfa\0\0\0\0") << "0";
+    QTest::newRow("0.")  << raw("\xfb\0\0\0\0\0\0\0\0") << "0";
+    QTest::newRow("-1.f16") << raw("\xf9\xbc\x00") << "-1";
+    QTest::newRow("-1.f") << raw("\xfa\xbf\x80\0\0") << "-1";
+    QTest::newRow("-1.") << raw("\xfb\xbf\xf0\0\0\0\0\0\0") << "-1";
+    QTest::newRow("16777215.f") << raw("\xfa\x4b\x7f\xff\xff") << "16777215";
+    QTest::newRow("16777215.") << raw("\xfb\x41\x6f\xff\xff\xe0\0\0\0") << "16777215";
+    QTest::newRow("-16777215.f") << raw("\xfa\xcb\x7f\xff\xff") << "-16777215";
+    QTest::newRow("-16777215.") << raw("\xfb\xc1\x6f\xff\xff\xe0\0\0\0") << "-16777215";
+
+    QTest::newRow("0.5f16") << raw("\xf9\x38\0") << "0.5";
+    QTest::newRow("0.5f") << raw("\xfa\x3f\0\0\0") << "0.5";
+    QTest::newRow("0.5") << raw("\xfb\x3f\xe0\0\0\0\0\0\0") << "0.5";
+    QTest::newRow("2.f^24-1") << raw("\xfa\x4b\x7f\xff\xff") << "16777215";
+    QTest::newRow("2.^53-1") << raw("\xfb\x43\x3f\xff\xff""\xff\xff\xff\xff") << "9007199254740991";
+    QTest::newRow("2.f^64-epsilon") << raw("\xfa\x5f\x7f\xff\xff") << "18446742974197923840";
+    QTest::newRow("2.^64-epsilon") << raw("\xfb\x43\xef\xff\xff""\xff\xff\xff\xff") << "18446744073709549568";
+    QTest::newRow("2.f^64") << raw("\xfa\x5f\x80\0\0") << "1.8446744073709552e+19";
+    QTest::newRow("2.^64") << raw("\xfb\x43\xf0\0\0\0\0\0\0") << "1.8446744073709552e+19";
+
+    // infinities and NaN are not supported in JSON, they convert to null
+    QTest::newRow("nan_f16") << raw("\xf9\x7e\x00") << "null";
+    QTest::newRow("nan_f") << raw("\xfa\x7f\xc0\0\0") << "null";
+    QTest::newRow("nan") << raw("\xfb\x7f\xf8\0\0\0\0\0\0") << "null";
+    QTest::newRow("-inf_f") << raw("\xfa\xff\x80\0\0") << "null";
+    QTest::newRow("-inf_f16") << raw("\xf9\xfc\x00") << "null";
+    QTest::newRow("-inf") << raw("\xfb\xff\xf0\0\0\0\0\0\0") << "null";
+    QTest::newRow("+inf_f") << raw("\xfa\x7f\x80\0\0") << "null";
+    QTest::newRow("+inf_f16") << raw("\xf9\x7c\x00") << "null";
+    QTest::newRow("+inf") << raw("\xfb\x7f\xf0\0\0\0\0\0\0") << "null";
+}
+
+void addTextStringsData()
+{
+    QTest::newRow("emptytextstring") << raw("\x60") << "\"\"";
+    QTest::newRow("textstring1") << raw("\x61 ") << "\" \"";
+    QTest::newRow("textstring5") << raw("\x65Hello") << "\"Hello\"";
+    QTest::newRow("textstring24") << raw("\x78\x18""123456789012345678901234")
+                                  << "\"123456789012345678901234\"";
+    QTest::newRow("textstring256") << raw("\x79\1\0") + QByteArray(256, '3')
+                                   << '"' + QString(256, '3') + '"';
+
+    // strings with undefined length
+    QTest::newRow("_emptytextstring") << raw("\x7f\xff") << "\"\"";
+    QTest::newRow("_emptytextstring2") << raw("\x7f\x60\xff") << "\"\"";
+    QTest::newRow("_emptytextstring3") << raw("\x7f\x60\x60\xff") << "\"\"";
+    QTest::newRow("_textstring5*2") << raw("\x7f\x63Hel\x62lo\xff") << "\"Hello\"";
+    QTest::newRow("_textstring5*5") << raw("\x7f\x61H\x61""e\x61l\x61l\x61o\xff") << "\"Hello\"";
+    QTest::newRow("_textstring5*6") << raw("\x7f\x61H\x61""e\x61l\x60\x61l\x61o\xff") << "\"Hello\"";
+}
+
+void addNonJsonData()
+{
+    QTest::newRow("undefined") << raw("\xf7") << "\"undefined\"";
+    QTest::newRow("simple0") << raw("\xe0") << "\"simple(0)\"";
+    QTest::newRow("simple19") << raw("\xf3") << "\"simple(19)\"";
+    QTest::newRow("simple32") << raw("\xf8\x20") << "\"simple(32)\"";
+    QTest::newRow("simple255") << raw("\xf8\xff") << "\"simple(255)\"";
+}
+
+void addByteStringsData()
+{
+    QTest::newRow("emptybytestring") << raw("\x40") << "\"\"";
+    QTest::newRow("bytestring1") << raw("\x41 ") << "\"IA\"";
+    QTest::newRow("bytestring1-nul") << raw("\x41\0") << "\"AA\"";
+    QTest::newRow("bytestring2") << raw("\x42Hi") << "\"SGk\"";
+    QTest::newRow("bytestring3") << raw("\x43Hey") << "\"SGV5\"";
+    QTest::newRow("bytestring4") << raw("\x44Hola") << "\"SG9sYQ\"";
+    QTest::newRow("bytestring5") << raw("\x45Hello") << "\"SGVsbG8\"";
+    QTest::newRow("bytestring24") << raw("\x58\x18""123456789012345678901234")
+                                  << "\"MTIzNDU2Nzg5MDEyMzQ1Njc4OTAxMjM0\"";
+
+    // strings with undefined length
+    QTest::newRow("_emptybytestring") << raw("\x5f\xff") << "\"\"";
+    QTest::newRow("_emptybytestring2") << raw("\x5f\x40\xff") << "\"\"";
+    QTest::newRow("_emptybytestring3") << raw("\x5f\x40\x40\xff") << "\"\"";
+    QTest::newRow("_bytestring5*2") << raw("\x5f\x43Hel\x42lo\xff") << "\"SGVsbG8\"";
+    QTest::newRow("_bytestring5*5") << raw("\x5f\x41H\x41""e\x41l\x41l\x41o\xff") << "\"SGVsbG8\"";
+    QTest::newRow("_bytestring5*6") << raw("\x5f\x41H\x41""e\x40\x41l\x41l\x41o\xff") << "\"SGVsbG8\"";
+}
+
+void addEmptyContainersData()
+{
+    QTest::newRow("emptyarray") << raw("\x80") << "[]";
+    QTest::newRow("emptymap") << raw("\xa0") << "{}";
+    QTest::newRow("_emptyarray") << raw("\x9f\xff") << "[]";
+    QTest::newRow("_emptymap") << raw("\xbf\xff") << "{}";
+}
+
+CborError parseOne(CborValue *it, QString *parsed, int flags)
+{
+    char *buffer;
+    size_t size;
+
+    FILE *f = open_memstream(&buffer, &size);
+    CborError err = cbor_value_to_json_advance(f, it, flags);
+    fclose(f);
+
+    *parsed = QString::fromLatin1(buffer);
+    free(buffer);
+    return err;
+}
+
+bool compareFailed = true;
+void compareOne_real(const QByteArray &data, const QString &expected, int flags, int line)
+{
+    compareFailed = true;
+    CborParser parser;
+    CborValue first;
+    CborError err = cbor_parser_init(reinterpret_cast<const quint8 *>(data.constData()), data.length(), 0, &parser, &first);
+    QVERIFY2(!err, QByteArray::number(line) + ": Got error \"" + cbor_error_string(err) + "\"");
+
+    QString decoded;
+    err = parseOne(&first, &decoded, flags);
+    QVERIFY2(!err, QByteArray::number(line) + ": Got error \"" + cbor_error_string(err) +
+                   "\"; decoded stream:\n" + decoded.toLatin1());
+    QCOMPARE(decoded, expected);
+
+    // check that we consumed everything
+    QCOMPARE((void*)cbor_value_get_next_byte(&first), (void*)data.constEnd());
+
+    compareFailed = false;
+}
+#define compareOne(data, expected, flags) \
+    compareOne_real(data, expected, flags, __LINE__); \
+    if (compareFailed) return
+
+void tst_ToJson::initTestCase()
+{
+    setlocale(LC_ALL, "C");
+}
+
+void tst_ToJson::fixed_data()
+{
+    addColumns();
+    addFixedData();
+}
+
+void tst_ToJson::fixed()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+
+    compareOne(data, expected, 0);
+}
+
+void tst_ToJson::textstrings_data()
+{
+    addColumns();
+    addTextStringsData();
+}
+
+void tst_ToJson::nonjson_data()
+{
+    addColumns();
+    addNonJsonData();
+}
+
+void tst_ToJson::bytestrings_data()
+{
+    addColumns();
+    addByteStringsData();
+}
+
+void tst_ToJson::emptyContainers_data()
+{
+    addColumns();
+    addEmptyContainersData();
+}
+
+void tst_ToJson::arrays_data()
+{
+    addColumns();
+    addFixedData();
+    addTextStringsData();
+    addNonJsonData();
+    addByteStringsData();
+}
+
+void tst_ToJson::arrays()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+
+    compareOne("\x81" + data, '[' + expected + ']', 0);
+    compareOne("\x82" + data + data, '[' + expected + ',' + expected + ']', 0);
+}
+
+void tst_ToJson::nestedArrays()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+
+    compareOne("\x81\x81" + data, "[[" + expected + "]]", 0);
+    compareOne("\x81\x81\x81" + data, "[[[" + expected + "]]]", 0);
+    compareOne("\x81\x82" + data + data, "[[" + expected + ',' + expected + "]]", 0);
+    compareOne("\x82\x81" + data + data, "[[" + expected + "]," + expected + "]", 0);
+    compareOne("\x82\x81" + data + '\x81' + data, "[[" + expected + "],[" + expected + "]]", 0);
+}
+
+void tst_ToJson::maps()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+
+    compareOne("\xa1\x65" "Hello" + data, "{\"Hello\":" + expected + '}', 0);
+}
+
+void tst_ToJson::nestedMaps()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+
+    compareOne("\xa1\x65Hello\xa1\x65World" + data, "{\"Hello\":{\"World\":" + expected + "}}", 0);
+//    compareOne("\xa1\x63""foo\xa1\63""bar" + data + "\63""baz\xa1\x64quux" + data,
+//               "{\"foo\":{\"bar\":" + expected + "},\"baz\":{\"quux\":" + expected + "}", 0);
+}
+
+void tst_ToJson::nonStringKeyMaps_data()
+{
+    addColumns();
+
+    QTest::newRow("0") << raw("\x00") << "0";
+    QTest::newRow("1") << raw("\x01") << "1";
+    QTest::newRow("UINT32_MAX") << raw("\x1a\xff\xff\xff\xff") << "4294967295";
+    QTest::newRow("UINT32_MAX+1") << raw("\x1b\0\0\0\1\0\0\0\0") << "4294967296";
+    QTest::newRow("UINT64_MAX") << raw("\x1b" "\xff\xff\xff\xff" "\xff\xff\xff\xff")
+                                << QString::number(std::numeric_limits<uint64_t>::max());
+
+    QTest::newRow("-1") << raw("\x20") << "-1";
+    QTest::newRow("-UINT32_MAX") << raw("\x3a\xff\xff\xff\xff") << "-4294967296";
+    QTest::newRow("-UINT32_MAX-1") << raw("\x3b\0\0\0\1\0\0\0\0") << "-4294967297";
+    QTest::newRow("-UINT64_MAX") << raw("\x3b" "\xff\xff\xff\xff" "\xff\xff\xff\xfe")
+                                 << '-' + QString::number(std::numeric_limits<uint64_t>::max());
+    QTest::newRow("-UINT64_MAX-1") << raw("\x3b" "\xff\xff\xff\xff" "\xff\xff\xff\xff")
+                                 << "-18446744073709551616";
+
+    QTest::newRow("simple0") << raw("\xe0") << "simple(0)";
+    QTest::newRow("simple19") << raw("\xf3") << "simple(19)";
+    QTest::newRow("false") << raw("\xf4") << "false";
+    QTest::newRow("true") << raw("\xf5") << "true";
+    QTest::newRow("null") << raw("\xf6") << "null";
+    QTest::newRow("undefined") << raw("\xf7") << "undefined";
+    QTest::newRow("simple32") << raw("\xf8\x20") << "simple(32)";
+    QTest::newRow("simple255") << raw("\xf8\xff") << "simple(255)";
+
+    QTest::newRow("0.f16") << raw("\xf9\0\0") << "0.f16";
+    QTest::newRow("0.f") << raw("\xfa\0\0\0\0") << "0.f";
+    QTest::newRow("0.")  << raw("\xfb\0\0\0\0\0\0\0\0") << "0.";
+    QTest::newRow("-1.f16") << raw("\xf9\xbc\x00") << "-1.f16";
+    QTest::newRow("-1.f") << raw("\xfa\xbf\x80\0\0") << "-1.f";
+    QTest::newRow("-1.") << raw("\xfb\xbf\xf0\0\0\0\0\0\0") << "-1.";
+    QTest::newRow("65504.f16") << raw("\xf9\x7b\xff") << "65504.f16";
+    QTest::newRow("16777215.f") << raw("\xfa\x4b\x7f\xff\xff") << "16777215.f";
+    QTest::newRow("16777215.") << raw("\xfb\x41\x6f\xff\xff\xe0\0\0\0") << "16777215.";
+    QTest::newRow("-16777215.f") << raw("\xfa\xcb\x7f\xff\xff") << "-16777215.f";
+    QTest::newRow("-16777215.") << raw("\xfb\xc1\x6f\xff\xff\xe0\0\0\0") << "-16777215.";
+
+    QTest::newRow("0.5f16") << raw("\xf9\x38\0") << "0.5f16";
+    QTest::newRow("0.5f") << raw("\xfa\x3f\0\0\0") << "0.5f";
+    QTest::newRow("0.5") << raw("\xfb\x3f\xe0\0\0\0\0\0\0") << "0.5";
+    QTest::newRow("2.f16^11-1") << raw("\xf9\x67\xff") << "2047.f16";
+    QTest::newRow("2.f^24-1") << raw("\xfa\x4b\x7f\xff\xff") << "16777215.f";
+    QTest::newRow("2.^53-1") << raw("\xfb\x43\x3f\xff\xff""\xff\xff\xff\xff") << "9007199254740991.";
+    QTest::newRow("2.f^64-epsilon") << raw("\xfa\x5f\x7f\xff\xff") << "18446742974197923840.f";
+    QTest::newRow("2.^64-epsilon") << raw("\xfb\x43\xef\xff\xff""\xff\xff\xff\xff") << "18446744073709549568.";
+    QTest::newRow("2.f^64") << raw("\xfa\x5f\x80\0\0") << "1.8446744073709552e+19f";
+    QTest::newRow("2.^64") << raw("\xfb\x43\xf0\0\0\0\0\0\0") << "1.8446744073709552e+19";
+
+    QTest::newRow("nan_f16") << raw("\xf9\x7e\x00") << "nan";
+    QTest::newRow("nan_f") << raw("\xfa\x7f\xc0\0\0") << "nan";
+    QTest::newRow("nan") << raw("\xfb\x7f\xf8\0\0\0\0\0\0") << "nan";
+    QTest::newRow("-inf_f16") << raw("\xf9\xfc\x00") << "-inf";
+    QTest::newRow("-inf_f") << raw("\xfa\xff\x80\0\0") << "-inf";
+    QTest::newRow("-inf") << raw("\xfb\xff\xf0\0\0\0\0\0\0") << "-inf";
+    QTest::newRow("+inf_f16") << raw("\xf9\x7c\x00") << "inf";
+    QTest::newRow("+inf_f") << raw("\xfa\x7f\x80\0\0") << "inf";
+    QTest::newRow("+inf") << raw("\xfb\x7f\xf0\0\0\0\0\0\0") << "inf";
+
+    QTest::newRow("emptybytestring") << raw("\x40") << "h''";
+    QTest::newRow("bytestring1") << raw("\x41 ") << "h'20'";
+    QTest::newRow("bytestring1-nul") << raw("\x41\0") << "h'00'";
+    QTest::newRow("bytestring5") << raw("\x45Hello") << "h'48656c6c6f'";
+    QTest::newRow("bytestring24") << raw("\x58\x18""123456789012345678901234")
+                                  << "h'313233343536373839303132333435363738393031323334'";
+
+    QTest::newRow("tag0") << raw("\xc0\x00") << "0(0)";
+    QTest::newRow("tag1") << raw("\xc1\x00") << "1(0)";
+    QTest::newRow("tag24") << raw("\xd8\x18\x00") << "24(0)";
+    QTest::newRow("tagUINT64_MAX") << raw("\xdb" "\xff\xff\xff\xff" "\xff\xff\xff\xff" "\x00")
+                                << QString::number(std::numeric_limits<uint64_t>::max()) + "(0)";
+
+    QTest::newRow("emptyarray") << raw("\x80") << "[]";
+    QTest::newRow("emptymap") << raw("\xa0") << "{}";
+    QTest::newRow("_emptyarray") << raw("\x9f\xff") << "[_ ]";
+    QTest::newRow("_emptymap") << raw("\xbf\xff") << "{_ }";
+
+    QTest::newRow("map-0-24") << raw("\xa1\0\x18\x18") << "{0: 24}";
+    QTest::newRow("map-24-0") << raw("\xa1\x18\x18\0") << "{24: 0}";
+    QTest::newRow("_map-0-24") << raw("\xbf\0\x18\x18\xff") << "{_ 0: 24}";
+    QTest::newRow("_map-24-0") << raw("\xbf\x18\x18\0\xff") << "{_ 24: 0}";
+}
+
+void tst_ToJson::nonStringKeyMaps()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+
+    data = "\xa1" + data + "\1";
+    compareOne(data, "{\"" + expected + "\":1}", CborConvertStringifyMapKeys);
+
+    // and verify that they fail if we use CborConvertRequireMapStringKeys
+    CborParser parser;
+    CborValue first;
+    QString decoded;
+    cbor_parser_init(reinterpret_cast<const quint8 *>(data.constData()), data.length(), 0, &parser, &first);
+    CborError err = parseOne(&first, &decoded, CborConvertRequireMapStringKeys);
+    QCOMPARE(err, CborErrorJsonObjectKeyNotString);
+}
+
+void tst_ToJson::tagsToObjects_data()
+{
+    addColumns();
+    QTest::newRow("0(0)") << raw("\xc0\0") << "{\"tag0\":0}";
+    QTest::newRow("0(-1)") << raw("\xc0\x20") << "{\"tag0\":-1}";
+    QTest::newRow("0(\"hello\")") << raw("\xc0\x65hello") << "{\"tag0\":\"hello\"}";
+    QTest::newRow("22(h'48656c6c6f')") << raw("\xd6\x45Hello") << "{\"tag22\":\"SGVsbG8\"}";
+    QTest::newRow("0([1,2,3])") << raw("\xc0\x83\1\2\3") << "{\"tag0\":[1,2,3]}";
+    QTest::newRow("0({\"z\":true,\"y\":1})") << raw("\xc0\xa2\x61z\xf5\x61y\1") << "{\"tag0\":{\"z\":true,\"y\":1}}";
+
+    // large tags
+    QTest::newRow("55799(0)") << raw("\xd9\xd9\xf7\0") << "{\"tag55799\":0}";
+    QTest::newRow("4294967295") << raw("\xda\xff\xff\xff\xff\0") << "{\"tag4294967295\":0}";
+    QTest::newRow("18446744073709551615(0)") << raw("\xdb\xff\xff\xff\xff""\xff\xff\xff\xff\0")
+                                             << "{\"tag18446744073709551615\":0}";
+
+    // nested tags
+    QTest::newRow("0(1(2))") << raw("\xc0\xc1\2") << "{\"tag0\":{\"tag1\":2}}";
+    QTest::newRow("0({\"z\":1(2)})") << raw("\xc0\xa1\x61z\xc1\2") << "{\"tag0\":{\"z\":{\"tag1\":2}}}";
+}
+
+void tst_ToJson::tagsToObjects()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+
+    compareOne(data, expected, CborConvertTagsToObjects);
+}
+
+void tst_ToJson::taggedByteStringsToBase16_data()
+{
+    QTest::addColumn<QByteArray>("data");
+    QTest::addColumn<QString>("base64url");
+    QTest::addColumn<QString>("base64");
+    QTest::addColumn<QString>("base16");
+
+    QTest::newRow("emptybytestring") << raw("\x40") << "" << "" << "";
+    QTest::newRow("bytestring1") << raw("\x41 ") << "IA" << "IA==" << "20";
+    QTest::newRow("bytestring1-nul") << raw("\x41\0") << "AA" << "AA==" << "00";
+    QTest::newRow("bytestring1-ff") << raw("\x41\xff") << "_w" << "/w==" << "ff";
+    QTest::newRow("bytestring2") << raw("\x42Hi") << "SGk" << "SGk=" << "4869";
+    QTest::newRow("bytestring3") << raw("\x43Hey") << "SGV5" << "SGV5" << "486579";
+    QTest::newRow("bytestring4") << raw("\x44Hola") << "SG9sYQ" << "SG9sYQ==" << "486f6c61";
+    QTest::newRow("bytestring5") << raw("\x45Hello") << "SGVsbG8" << "SGVsbG8=" << "48656c6c6f";
+    QTest::newRow("bytestring24") << raw("\x58\x18""123456789012345678901234")
+                                  << "MTIzNDU2Nzg5MDEyMzQ1Njc4OTAxMjM0"
+                                  << "MTIzNDU2Nzg5MDEyMzQ1Njc4OTAxMjM0"
+                                  << "313233343536373839303132333435363738393031323334";
+
+    // strings with undefined length
+    QTest::newRow("_emptybytestring") << raw("\x5f\xff") << "" << "" << "";
+    QTest::newRow("_emptybytestring2") << raw("\x5f\x40\xff") << "" << "" << "";
+    QTest::newRow("_emptybytestring3") << raw("\x5f\x40\x40\xff") << "" << "" << "";
+    QTest::newRow("_bytestring5*2") << raw("\x5f\x43Hel\x42lo\xff") << "SGVsbG8" << "SGVsbG8=" << "48656c6c6f";
+    QTest::newRow("_bytestring5*5") << raw("\x5f\x41H\x41""e\x41l\x41l\x41o\xff")
+                                    << "SGVsbG8" << "SGVsbG8=" << "48656c6c6f";
+    QTest::newRow("_bytestring5*6") << raw("\x5f\x41H\x41""e\x40\x41l\x41l\x41o\xff")
+                                    << "SGVsbG8" << "SGVsbG8=" << "48656c6c6f";
+}
+
+void tst_ToJson::taggedByteStringsToBase16()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, base16);
+
+    compareOne('\xd7' + data, '"' + base16 + '"', 0);
+}
+
+void tst_ToJson::taggedByteStringsToBase64()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, base64);
+
+    compareOne('\xd6' + data, '"' + base64 + '"', 0);
+}
+
+void tst_ToJson::taggedByteStringsToBigNum()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, base64url);
+
+    compareOne('\xc3' + data, "\"~" + base64url + '"', 0);
+}
+
+void tst_ToJson::otherTags_data()
+{
+    addColumns();
+    addFixedData();
+    addTextStringsData();
+    addNonJsonData();
+    addByteStringsData();
+    addEmptyContainersData();
+}
+
+void tst_ToJson::otherTags()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+
+    // other tags produce no change in output
+    compareOne("\xc0" + data, expected, 0);
+    compareOne("\xc1" + data, expected, 0);
+    compareOne("\xc2" + data, expected, 0);
+    compareOne("\xc4" + data, expected, 0);
+    compareOne("\xc5" + data, expected, 0);
+    compareOne("\xd8\x20" + data, expected, 0);
+    compareOne("\xd8\x21" + data, expected, 0);
+    compareOne("\xd8\x22" + data, expected, 0);
+    compareOne("\xd8\x23" + data, expected, 0);
+    compareOne("\xd8\x24" + data, expected, 0);
+    compareOne("\xd9\xd9\xf7" + data, expected, 0);
+}
+
+void tst_ToJson::metaData_data()
+{
+    addColumns();
+
+    // booleans, null, strings, double precision numbers, regular maps, arrays and integers that
+    // didn't get rounded don't have metadata
+    QTest::newRow("0") << raw("\x00") << QString();
+    QTest::newRow("1") << raw("\x01") << QString();
+    QTest::newRow("2^53-1") << raw("\x1b\0\x1f\xff\xff""\xff\xff\xff\xff") << QString();
+    QTest::newRow("2^64-epsilon") << raw("\x1b\xff\xff\xff\xff""\xff\xff\xf8\x00") << QString();
+    QTest::newRow("-1") << raw("\x20") << QString();
+    QTest::newRow("-2") << raw("\x21") << QString();
+    QTest::newRow("-2^53+1") << raw("\x3b\0\x1f\xff\xff""\xff\xff\xff\xfe") << QString();
+    QTest::newRow("-2^64+epsilon") << raw("\x3b\xff\xff\xff\xff""\xff\xff\xf8\x00") << QString();
+    QTest::newRow("emptytextstring") << raw("\x60") << QString();
+    QTest::newRow("textstring1") << raw("\x61 ") << QString();
+    QTest::newRow("0.5") << raw("\xfb\x3f\xe0\0\0\0\0\0\0") << QString();
+    QTest::newRow("2.^64") << raw("\xfb\x43\xf0\0\0\0\0\0\0") << QString();
+    QTest::newRow("false") << raw("\xf4") << QString();
+    QTest::newRow("true") << raw("\xf5") << QString();
+    QTest::newRow("null") << raw("\xf6") << QString();
+    QTest::newRow("emptyarray") << raw("\x80") << QString();
+    QTest::newRow("emptymap") << raw("\xa0") << QString();
+    QTest::newRow("array*1") << raw("\x81\xf6") << QString();
+    QTest::newRow("map*1") << raw("\xa1\x61z\xf4") << QString();
+
+    // ---- everything from here on has at least the type ----
+    QTest::newRow("emptybytestring") << raw("\x40") << "\"t\":64";
+    QTest::newRow("bytestring1") << raw("\x41 ") << "\"t\":64";
+    QTest::newRow("undefined") << raw("\xf7") << "\"t\":247";
+    QTest::newRow("0.f16") << raw("\xf9\0\0") << "\"t\":249";
+    QTest::newRow("-1.f16") << raw("\xf9\xbc\x00") << "\"t\":249";
+    QTest::newRow("0.f") << raw("\xfa\0\0\0\0") << "\"t\":250";
+    QTest::newRow("-1.f") << raw("\xfa\xbf\x80\0\0") << "\"t\":250";
+    QTest::newRow("16777215.f") << raw("\xfa\x4b\x7f\xff\xff") << "\"t\":250";
+    QTest::newRow("-16777215.f") << raw("\xfa\xcb\x7f\xff\xff") << "\"t\":250";
+    QTest::newRow("0.")  << raw("\xfb\0\0\0\0\0\0\0\0") << "\"t\":251";
+    QTest::newRow("-1.") << raw("\xfb\xbf\xf0\0\0\0\0\0\0") << "\"t\":251";
+    QTest::newRow("16777215.") << raw("\xfb\x41\x6f\xff\xff\xe0\0\0\0") << "\"t\":251";
+    QTest::newRow("-16777215.") << raw("\xfb\xc1\x6f\xff\xff\xe0\0\0\0") << "\"t\":251";
+    QTest::newRow("2.^53-1") << raw("\xfb\x43\x3f\xff\xff""\xff\xff\xff\xff") << "\"t\":251";
+    QTest::newRow("2.^64-epsilon") << raw("\xfb\x43\xef\xff\xff""\xff\xff\xff\xff") << "\"t\":251";
+
+    // integers that are too precise for double
+    QTest::newRow("2^53+1") << raw("\x1b\0\x20\0\0""\0\0\0\1")
+                            << "\"t\":0,\"v\":\"+20000000000001\"";
+    QTest::newRow("INT64_MAX-1") << raw("\x1b\x7f\xff\xff\xff""\xff\xff\xff\xfe")
+                                 << "\"t\":0,\"v\":\"+7ffffffffffffffe\"";
+    QTest::newRow("INT64_MAX+1") << raw("\x1b\x80\0\0\0""\0\0\0\1")
+                                 << "\"t\":0,\"v\":\"+8000000000000001\"";
+    QTest::newRow("-2^53-1") << raw("\x3b\0\x20\0\0""\0\0\0\0")
+                             << "\"t\":0,\"v\":\"-20000000000000\"";
+
+    // simple values
+    QTest::newRow("simple0") << raw("\xe0") << "\"t\":224,\"v\":0";
+    QTest::newRow("simple19") << raw("\xf3") << "\"t\":224,\"v\":19";
+    QTest::newRow("simple32") << raw("\xf8\x20") << "\"t\":224,\"v\":32";
+    QTest::newRow("simple255") << raw("\xf8\xff") << "\"t\":224,\"v\":255";
+
+    // infinities and NaN are not supported in JSON, they convert to null
+    QTest::newRow("nan_f16") << raw("\xf9\x7e\x00") << "\"t\":249,\"v\":\"nan\"";
+    QTest::newRow("nan_f") << raw("\xfa\x7f\xc0\0\0") << "\"t\":250,\"v\":\"nan\"";
+    QTest::newRow("nan") << raw("\xfb\x7f\xf8\0\0\0\0\0\0") << "\"t\":251,\"v\":\"nan\"";
+    QTest::newRow("-inf_f16") << raw("\xf9\xfc\x00") << "\"t\":249,\"v\":\"-inf\"";
+    QTest::newRow("-inf_f") << raw("\xfa\xff\x80\0\0") << "\"t\":250,\"v\":\"-inf\"";
+    QTest::newRow("-inf") << raw("\xfb\xff\xf0\0\0\0\0\0\0") << "\"t\":251,\"v\":\"-inf\"";
+    QTest::newRow("+inf_f16") << raw("\xf9\x7c\x00") << "\"t\":249,\"v\":\"inf\"";
+    QTest::newRow("+inf_f") << raw("\xfa\x7f\x80\0\0") << "\"t\":250,\"v\":\"inf\"";
+    QTest::newRow("+inf") << raw("\xfb\x7f\xf0\0\0\0\0\0\0") << "\"t\":251,\"v\":\"inf\"";
+
+    // tags on native types
+    QTest::newRow("tag+0") << raw("\xc0\x00") << "\"tag\":\"0\"";
+    QTest::newRow("tag+-2") << raw("\xc0\x21") << "\"tag\":\"0\"";
+    QTest::newRow("tag+0.5") << raw("\xc0\xfb\x3f\xe0\0\0\0\0\0\0") << "\"tag\":\"0\"";
+    QTest::newRow("tag+emptytextstring") << raw("\xc0\x60") << "\"tag\":\"0\"";
+    QTest::newRow("tag+textstring1") << raw("\xc0\x61 ") << "\"tag\":\"0\"";
+    QTest::newRow("tag+false") << raw("\xc0\xf4") << "\"tag\":\"0\"";
+    QTest::newRow("tag+true") << raw("\xc0\xf5") << "\"tag\":\"0\"";
+    QTest::newRow("tag+null") << raw("\xc0\xf6") << "\"tag\":\"0\"";
+    QTest::newRow("tag+emptyarray") << raw("\xc0\x80") << "\"tag\":\"0\"";
+    QTest::newRow("tag+emptymap") << raw("\xc0\xa0") << "\"tag\":\"0\"";
+    QTest::newRow("tag+array*1") << raw("\xc0\x81\xf6") << "\"tag\":\"0\"";
+    QTest::newRow("tag+map*1") << raw("\xc0\xa1\x61z\xf4") << "\"tag\":\"0\"";
+
+    // tags on non-native types
+    QTest::newRow("tag+emptybytestring") << raw("\xc0\x40") << "\"tag\":\"0\",\"t\":64";
+    QTest::newRow("tag+bytestring1") << raw("\xc0\x41 ") << "\"tag\":\"0\",\"t\":64";
+    QTest::newRow("tag+undefined") << raw("\xc0\xf7") << "\"tag\":\"0\",\"t\":247";
+    QTest::newRow("tag+0.f") << raw("\xc0\xfa\0\0\0\0") << "\"tag\":\"0\",\"t\":250";
+    QTest::newRow("tag+-1.f") << raw("\xc0\xfa\xbf\x80\0\0") << "\"tag\":\"0\",\"t\":250";
+    QTest::newRow("tag+16777215.f") << raw("\xc0\xfa\x4b\x7f\xff\xff") << "\"tag\":\"0\",\"t\":250";
+    QTest::newRow("tag+-16777215.f") << raw("\xc0\xfa\xcb\x7f\xff\xff") << "\"tag\":\"0\",\"t\":250";
+    QTest::newRow("tag+0.")  << raw("\xc0\xfb\0\0\0\0\0\0\0\0") << "\"tag\":\"0\",\"t\":251";
+    QTest::newRow("tag+-1.") << raw("\xc0\xfb\xbf\xf0\0\0\0\0\0\0") << "\"tag\":\"0\",\"t\":251";
+    QTest::newRow("tag+16777215.") << raw("\xc0\xfb\x41\x6f\xff\xff\xe0\0\0\0") << "\"tag\":\"0\",\"t\":251";
+    QTest::newRow("tag+-16777215.") << raw("\xc0\xfb\xc1\x6f\xff\xff\xe0\0\0\0") << "\"tag\":\"0\",\"t\":251";
+
+    // big tags (don't fit in JS numbers)
+    QTest::newRow("bigtag1") << raw("\xdb\0\x20\0\0""\0\0\0\1\x60") << "\"tag\":\"9007199254740993\"";
+    QTest::newRow("bigtag2") << raw("\xdb\xff\xff\xff\xff""\xff\xff\xff\xfe\x60")
+                             << "\"tag\":\"18446744073709551614\"";
+
+    // specially-handled tags
+    QTest::newRow("negativebignum") << raw("\xc3\x41 ") << "\"tag\":\"3\",\"t\":64";
+    QTest::newRow("base64") << raw("\xd6\x41 ") << "\"tag\":\"22\",\"t\":64";
+    QTest::newRow("base16") << raw("\xd7\x41 ") << "\"tag\":\"23\",\"t\":64";
+}
+
+void compareMetaData(QByteArray data, const QString &expected, int otherFlags = 0)
+{
+    QString decoded;
+
+    // needs to be in one map, with the entry called "v"
+    data = "\xa1\x61v" + data;
+
+    {
+        CborParser parser;
+        CborValue first;
+        CborError err = cbor_parser_init(reinterpret_cast<const quint8 *>(data.constData()), data.length(), 0, &parser, &first);
+        QVERIFY2(!err, QByteArrayLiteral(": Got error \"") + cbor_error_string(err) + "\"");
+
+        err = parseOne(&first, &decoded, CborConvertAddMetadata | otherFlags);
+        QVERIFY2(!err, QByteArrayLiteral(": Got error \"") + cbor_error_string(err) +
+                 "\"; decoded stream:\n" + decoded.toLatin1());
+
+        // check that we consumed everything
+        QCOMPARE((void*)cbor_value_get_next_byte(&first), (void*)data.constEnd());
+    }
+
+    QVERIFY(decoded.startsWith("{\"v\":"));
+    QVERIFY(decoded.endsWith('}'));
+//    qDebug() << "was" << decoded;
+
+    // extract just the metadata
+    static const char needle[] = "\"v$cbor\":{";
+    int pos = decoded.indexOf(needle);
+    QCOMPARE(pos == -1, expected.isEmpty());
+    if (pos != -1) {
+        decoded.chop(2);
+        decoded = std::move(decoded).mid(pos + strlen(needle));
+        QCOMPARE(decoded, expected);
+    }
+}
+
+void tst_ToJson::metaData()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+    compareMetaData(data, expected);
+}
+
+void tst_ToJson::metaDataAndTagsToObjects()
+{
+    QFETCH(QByteArray, data);
+
+    // when a tag is converted to an object, the object gets metadata indicating it was a tag
+    compareMetaData(data, "\"t\":192", CborConvertTagsToObjects);
+}
+
+void tst_ToJson::metaDataForKeys_data()
+{
+    nonStringKeyMaps_data();
+
+    // string keys generate no metadata
+    QTest::newRow("string") << raw("\x60") << QString();
+}
+
+void tst_ToJson::metaDataForKeys()
+{
+    QFETCH(QByteArray, data);
+    QFETCH(QString, expected);
+    if (expected.isEmpty())
+        expected = "{\"\":false}";
+    else
+        expected = "{\"" + expected + "\":false,\"" + expected + "$keycbordump\":true}";
+    compareOne('\xa1' + data + '\xf4', expected,
+               CborConvertAddMetadata | CborConvertStringifyMapKeys);
+}
+
+QTEST_MAIN(tst_ToJson)

lib/cbor/tinycbor/tinycbor.pc.in

@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: TinyCBOR
+Description: A tiny CBOR encoder and decoder library
+Version: @version@
+Libs: -L${libdir} -ltinycbor
+Libs.private: -lm
+Cflags: -I${includedir}/tinycbor

lib/cbor/tinycbor/tools/cbordump/cbordump.c

@@ -0,0 +1,164 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#define _POSIX_C_SOURCE 200809L
+#include "cbor.h"
+#include "cborjson.h"
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+void *xrealloc(void *old, size_t size, const char *fname)
+{
+    old = realloc(old, size);
+    if (old == NULL) {
+        fprintf(stderr, "%s: %s\n", fname, strerror(errno));
+        exit(EXIT_FAILURE);
+    }
+    return old;
+}
+
+void printerror(CborError err, const char *fname)
+{
+    fprintf(stderr, "%s: %s\n", fname, cbor_error_string(err));
+    exit(EXIT_FAILURE);
+}
+
+void dumpFile(FILE *in, const char *fname, bool printJosn, int flags)
+{
+    static const size_t chunklen = 16 * 1024;
+    static size_t bufsize = 0;
+    static uint8_t *buffer = NULL;
+
+    size_t buflen = 0;
+    do {
+        if (bufsize == buflen)
+            buffer = xrealloc(buffer, bufsize += chunklen, fname);
+
+        size_t n = fread(buffer + buflen, 1, bufsize - buflen, in);
+        buflen += n;
+        if (n == 0) {
+            if (!ferror(in))
+                continue;
+            fprintf(stderr, "%s: %s\n", fname, strerror(errno));
+            exit(EXIT_FAILURE);
+        }
+    } while (!feof(in));
+
+    CborParser parser;
+    CborValue value;
+    CborError err = cbor_parser_init(buffer, buflen, 0, &parser, &value);
+    if (!err) {
+        if (printJosn)
+            err = cbor_value_to_json_advance(stdout, &value, flags);
+        else
+            err = cbor_value_to_pretty_advance_flags(stdout, &value, flags);
+        if (!err)
+            puts("");
+    }
+    if (!err && cbor_value_get_next_byte(&value) != buffer + buflen)
+        err = CborErrorGarbageAtEnd;
+    if (err)
+        printerror(err, fname);
+}
+
+int main(int argc, char **argv)
+{
+    bool printJson = false;
+    int json_flags = CborConvertDefaultFlags;
+    int cbor_flags = CborPrettyDefaultFlags;
+    int c;
+    while ((c = getopt(argc, argv, "MOSUcjhfn")) != -1) {
+        switch (c) {
+        case 'c':
+            printJson = false;
+            break;
+        case 'j':
+            printJson = true;
+            break;
+
+        case 'f':
+            cbor_flags |= CborPrettyShowStringFragments;
+            break;
+        case 'n':
+            cbor_flags |= CborPrettyIndicateIndeterminateLength | CborPrettyNumericEncodingIndicators;
+            break;
+
+        case 'M':
+            json_flags |= CborConvertAddMetadata;
+            break;
+        case 'O':
+            json_flags |= CborConvertTagsToObjects;
+            break;
+        case 'S':
+            json_flags |= CborConvertStringifyMapKeys;
+            break;
+        case 'U':
+            json_flags |= CborConvertByteStringsToBase64Url;
+            break;
+
+        case '?':
+            fprintf(stderr, "Unknown option -%c.\n", optopt);
+            /* fall through */
+        case 'h':
+            puts("Usage: cbordump [OPTION]... [FILE]...\n"
+                 "Interprets FILEs as CBOR binary data and dumps the content to stdout.\n"
+                 "\n"
+                 "Options:\n"
+                 " -c       Print a CBOR dump (see RFC 7049) (default)\n"
+                 " -j       Print a JSON equivalent version\n"
+                 " -h       Print this help output and exit\n"
+                 "When JSON output is active, the following options are recognized:\n"
+                 " -M       Add metadata so converting back to CBOR is possible\n"
+                 " -O       Convert CBOR tags to JSON objects\n"
+                 " -S       Stringify non-text string map keys\n"
+                 " -U       Convert all CBOR byte strings to Base64url regardless of tags\n"
+                 "When CBOR dump is active, the following options are recognized:\n"
+                 " -f       Show text and byte string fragments\n"
+                 " -n       Show overlong encoding of CBOR numbers and length"
+                 "");
+            return c == '?' ? EXIT_FAILURE : EXIT_SUCCESS;
+        }
+    }
+
+    char **fname = argv + optind;
+    if (!*fname) {
+        dumpFile(stdin, "-", printJson, printJson ? json_flags : cbor_flags);
+    } else {
+        for ( ; *fname; ++fname) {
+            FILE *in = fopen(*fname, "rb");
+            if (!in) {
+                perror("open");
+                return EXIT_FAILURE;
+            }
+
+            dumpFile(in, *fname, printJson, printJson ? json_flags : cbor_flags);
+            fclose(in);
+        }
+    }
+
+    return EXIT_SUCCESS;
+}

lib/cbor/tinycbor/tools/cbordump/cbordump.pro

@@ -0,0 +1,10 @@
+TEMPLATE = app
+CONFIG += console
+CONFIG -= app_bundle
+CONFIG -= qt
+DESTDIR = ../../bin
+
+CBORDIR = $$PWD/../../src
+INCLUDEPATH += $$CBORDIR
+SOURCES += cbordump.c
+LIBS += ../../lib/libtinycbor.a

lib/cbor/tinycbor/tools/json2cbor/json2cbor.c

@@ -0,0 +1,493 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Intel Corporation
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is
+** furnished to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in
+** all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+** THE SOFTWARE.
+**
+****************************************************************************/
+
+#define _POSIX_C_SOURCE 200809L
+#define _GNU_SOURCE
+#include "cbor.h"
+#include "cborinternal_p.h"
+#include "compilersupport_p.h"
+
+#include <cjson/cJSON.h>
+
+#include <errno.h>
+#include <math.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static const char meta_data_marker[] = "$cbor";
+uint8_t *buffer;
+size_t buffersize;
+bool usingMetaData = false;
+
+struct MetaData {
+    CborTag tag;
+    union {
+        const char *v;
+        uint8_t simpleType;
+    };
+    CborType t;
+    bool tagged;
+};
+
+uint8_t *decode_base64_generic(const char *string, size_t *len, const int8_t reverse_alphabet[256])
+{
+    *len = ((strlen(string) + 3) & ~3) * 3 / 4;
+    uint8_t *buffer = malloc(*len);
+    if (buffer == NULL)
+        return NULL;
+
+    uint8_t *out = buffer;
+    const uint8_t *in = (const uint8_t *)string;
+    bool done = false;
+    while (!done) {
+        if (reverse_alphabet[in[0]] < 0 || reverse_alphabet[in[1]] < 0) {
+            if (in[0] == '\0')
+                done = true;
+            break;
+        }
+
+        uint32_t val = reverse_alphabet[in[0]] << 18;
+        val |= reverse_alphabet[in[1]] << 12;
+        if (in[2] == '=' || in[2] == '\0') {
+            if (in[2] == '=' && (in[3] != '=' || in[4] != '\0'))
+                break;
+            val >>= 12;
+            done = true;
+        } else if (in[3] == '=' || in[3] == '\0') {
+            if (in[3] == '=' && in[4] != '\0')
+                break;
+            val >>= 6;
+            val |= reverse_alphabet[in[2]];
+            done = true;
+        } else {
+            val |= reverse_alphabet[in[2]] << 6;
+            val |= reverse_alphabet[in[3]];
+        }
+
+        *out++ = val >> 16;
+        *out++ = val >> 8;
+        *out++ = val;
+        in += 4;
+    }
+
+    if (!done) {
+        free(buffer);
+        return NULL;
+    }
+    *len = out - buffer;
+    return buffer;
+}
+
+uint8_t *decode_base64(const char *string, size_t *len)
+{
+    static const int8_t reverse_alphabet[256] = {
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
+        52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
+        -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
+        15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
+        -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+        41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+    };
+    return decode_base64_generic(string, len, reverse_alphabet);
+}
+
+uint8_t *decode_base64url(const char *string, size_t *len)
+{
+    static const int8_t reverse_alphabet[256] = {
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1,
+        52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
+        -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
+        15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, 63,
+        -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+        41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+    };
+    return decode_base64_generic(string, len, reverse_alphabet);
+}
+
+uint8_t *decode_base16(const char *string, size_t *len)
+{
+    size_t i;
+    *len = strlen(string) / 2;
+    uint8_t *buffer = malloc(*len);
+    if (buffer == NULL)
+        return NULL;
+
+    for (i = 0; i < *len; ++i) {
+        char c = string[i * 2];
+        if (c >= '0' && c <= '9') {
+            buffer[i] = (c - '0') << 4;
+        } else if ((c | 0x20) >= 'a' && (c | 0x20) <= 'f') {
+            buffer[i] = ((c | 0x20) - 'a' + 10) << 4;
+        } else {
+            free(buffer);
+            return NULL;
+        }
+
+        c = string[i * 2 + 1];
+        if (c >= '0' && c <= '9') {
+            buffer[i] |= (c - '0');
+        } else if ((c | 0x20) >= 'a' && (c | 0x20) <= 'f') {
+            buffer[i] |= ((c | 0x20) - 'a' + 10);
+        } else {
+            free(buffer);
+            return NULL;
+        }
+    }
+
+    return buffer;
+}
+
+size_t get_cjson_size_limited(cJSON *container)
+{
+    // cJSON_GetArraySize is O(n), so don't go too far
+    unsigned s = 0;
+    cJSON *item;
+    for (item = container->child; item; item = item->next) {
+        if (++s > 255)
+            return CborIndefiniteLength;
+    }
+    return s;
+}
+
+cJSON *get_meta_data(cJSON *object, cJSON *item)
+{
+    cJSON *meta;
+    char *metadatakey;
+
+    if (asprintf(&metadatakey, "%s%s", item->string, meta_data_marker) < 0 || metadatakey == NULL)
+        return NULL;
+    meta = cJSON_GetObjectItem(object, metadatakey);
+    free(metadatakey);
+    return meta;
+}
+
+struct MetaData parse_meta_data(cJSON *md)
+{
+    struct MetaData result = { 0, {NULL}, CborInvalidType, false };
+    if (md == NULL || md->type != cJSON_Object)
+        return result;
+
+    for (md = md->child; md; md = md->next) {
+        if (strcmp(md->string, "tag") == 0) {
+            if (md->type != cJSON_String || sscanf(md->valuestring, "%" PRIu64, &result.tag) < 0)
+                fprintf(stderr, "json2cbor: could not parse tag: %s\n", md->valuestring);
+            else
+                result.tagged = true;
+        } else if (strcmp(md->string, "t") == 0) {
+            result.t = md->valueint;
+        } else if (strcmp(md->string, "v") == 0) {
+            if (md->type == cJSON_Number)
+                result.simpleType = md->valueint;
+            else
+                result.v = md->valuestring;
+        }
+    }
+    return result;
+}
+
+CborError decode_json(cJSON *json, CborEncoder *encoder);
+CborError decode_json_with_metadata(cJSON *item, CborEncoder *encoder, struct MetaData md)
+{
+    switch (md.t) {
+    case CborIntegerType: {
+        // integer that has more than 53 bits of precision
+        uint64_t v;
+        bool positive = *md.v++ == '+';
+        if (sscanf(md.v, "%" PRIx64, &v) < 0) {
+            fprintf(stderr, "json2cbor: could not parse number: %s\n", md.v);
+            break;
+        }
+        return positive ? cbor_encode_uint(encoder, v) : cbor_encode_negative_int(encoder, v);
+    }
+
+    case CborByteStringType: {
+        uint8_t *data;
+        size_t len;
+        if (md.tag == CborExpectedBase64Tag)
+            data = decode_base64(item->valuestring, &len);
+        else if (md.tag == CborExpectedBase16Tag)
+            data = decode_base16(item->valuestring, &len);
+        else if (md.tag == CborNegativeBignumTag)
+            data = decode_base64url(item->valuestring + 1, &len);
+        else
+            data = decode_base64url(item->valuestring, &len);
+
+        if (data != NULL) {
+            CborError err = cbor_encode_byte_string(encoder, data, len);
+            free(data);
+            return err;
+        }
+        fprintf(stderr, "json2cbor: could not decode encoded byte string: %s\n", item->valuestring);
+        break;
+    }
+
+    case CborSimpleType:
+        return cbor_encode_simple_value(encoder, md.simpleType);
+
+    case CborUndefinedType:
+        return cbor_encode_undefined(encoder);
+
+    case CborHalfFloatType:
+    case CborFloatType:
+    case CborDoubleType: {
+        unsigned short half;
+        double v;
+        if (!md.v) {
+            v = item->valuedouble;
+        } else if (strcmp(md.v, "nan") == 0) {
+            v = NAN;
+        } else if (strcmp(md.v, "-inf") == 0) {
+            v = -INFINITY;
+        } else if (strcmp(md.v, "inf") == 0) {
+            v = INFINITY;
+        } else {
+            fprintf(stderr, "json2cbor: invalid floating-point value: %s\n", md.v);
+            break;
+        }
+
+        // we can't get an OOM here because the metadata makes up for space
+        // (the smallest metadata is "$cbor":{"t":250} (17 bytes)
+        return (md.t == CborDoubleType) ? cbor_encode_double(encoder, v) :
+               (md.t == CborFloatType) ? cbor_encode_float(encoder, v) :
+                                         (half = encode_half(v), cbor_encode_half_float(encoder, &half));
+    }
+
+    default:
+        fprintf(stderr, "json2cbor: invalid CBOR type: %d\n", md.t);
+    case CborInvalidType:
+        break;
+    }
+
+    return decode_json(item, encoder);
+}
+
+CborError decode_json(cJSON *json, CborEncoder *encoder)
+{
+    CborEncoder container;
+    CborError err;
+    cJSON *item;
+
+    switch (json->type) {
+    case cJSON_False:
+    case cJSON_True:
+        return cbor_encode_boolean(encoder, json->type == cJSON_True);
+
+    case cJSON_NULL:
+        return cbor_encode_null(encoder);
+
+    case cJSON_Number:
+        if ((double)json->valueint == json->valuedouble)
+            return cbor_encode_int(encoder, json->valueint);
+encode_double:
+        // the only exception that JSON is larger: floating point numbers
+        container = *encoder;   // save the state
+        err = cbor_encode_double(encoder, json->valuedouble);
+
+        if (err == CborErrorOutOfMemory) {
+            buffersize += 1024;
+            uint8_t *newbuffer = realloc(buffer, buffersize);
+            if (newbuffer == NULL)
+                return err;
+
+            *encoder = container;   // restore state
+            encoder->data.ptr = newbuffer + (container.data.ptr - buffer);
+            encoder->end = newbuffer + buffersize;
+            buffer = newbuffer;
+            goto encode_double;
+        }
+        return err;
+
+    case cJSON_String:
+        return cbor_encode_text_stringz(encoder, json->valuestring);
+
+    default:
+        return CborErrorUnknownType;
+
+    case cJSON_Array:
+        err = cbor_encoder_create_array(encoder, &container, get_cjson_size_limited(json));
+        if (err)
+            return err;
+        for (item = json->child; item; item = item->next) {
+            err = decode_json(item, &container);
+            if (err)
+                return err;
+        }
+        return cbor_encoder_close_container_checked(encoder, &container);
+
+    case cJSON_Object:
+        err = cbor_encoder_create_map(encoder, &container,
+                                      usingMetaData ? CborIndefiniteLength : get_cjson_size_limited(json));
+        if (err)
+            return err;
+
+        for (item = json->child ; item; item = item->next) {
+            if (usingMetaData && strlen(item->string) > strlen(meta_data_marker)
+                    && strcmp(item->string + strlen(item->string) - strlen(meta_data_marker), meta_data_marker) == 0)
+                continue;
+
+            err = cbor_encode_text_stringz(&container, item->string);
+            if (err)
+                return err;
+
+            if (usingMetaData) {
+                cJSON *meta = get_meta_data(json, item);
+                struct MetaData md = parse_meta_data(meta);
+                if (md.tagged) {
+                    err = cbor_encode_tag(&container, md.tag);
+                    if (err)
+                        return err;
+                }
+
+                err = decode_json_with_metadata(item, &container, md);
+            } else {
+                err = decode_json(item, &container);
+            }
+            if (err)
+                return err;
+        }
+
+        return cbor_encoder_close_container_checked(encoder, &container);
+    }
+}
+
+int main(int argc, char **argv)
+{
+    int c;
+    while ((c = getopt(argc, argv, "M")) != -1) {
+        switch (c) {
+        case 'M':
+            usingMetaData = true;
+            break;
+
+        case '?':
+            fprintf(stderr, "Unknown option -%c.\n", optopt);
+            // fall through
+        case 'h':
+            puts("Usage: json2cbor [OPTION]... [FILE]...\n"
+                 "Reads JSON content from FILE and converts to CBOR.\n"
+                 "\n"
+                 "Options:\n"
+                 " -M       Interpret metadata added by cbordump tool\n"
+                 "");
+            return c == '?' ? EXIT_FAILURE : EXIT_SUCCESS;
+        }
+    }
+
+    FILE *in;
+    const char *fname = argv[optind];
+    if (fname && strcmp(fname, "-") != 0) {
+        in = fopen(fname, "r");
+        if (!in) {
+            perror("open");
+            return EXIT_FAILURE;
+        }
+    } else {
+        in = stdin;
+        fname = "-";
+    }
+
+    /* 1. read the file */
+    off_t fsize;
+    if (fseeko(in, 0, SEEK_END) == 0 && (fsize = ftello(in)) >= 0) {
+        buffersize = fsize + 1;
+        buffer = malloc(buffersize);
+        if (buffer == NULL) {
+            perror("malloc");
+            return EXIT_FAILURE;
+        }
+
+        rewind(in);
+        fsize = fread(buffer, 1, fsize, in);
+        buffer[fsize] = '\0';
+    } else {
+        const unsigned chunk = 16384;
+        buffersize = 0;
+        buffer = NULL;
+        do {    // it the hard way
+            buffer = realloc(buffer, buffersize + chunk);
+            if (buffer == NULL) {
+                perror("malloc");
+                return EXIT_FAILURE;
+            }
+
+            buffersize += fread(buffer + buffersize, 1, chunk, in);
+        } while (!feof(in) && !ferror(in));
+        buffer[buffersize] = '\0';
+    }
+
+    if (ferror(in)) {
+        perror("read");
+        return EXIT_FAILURE;
+    }
+    if (in != stdin)
+        fclose(in);
+
+    /* 2. parse as JSON */
+    cJSON *doc = cJSON_ParseWithOpts((char *)buffer, NULL, true);
+    if (doc == NULL) {
+        fprintf(stderr, "json2cbor: %s: could not parse.\n", fname);
+        return EXIT_FAILURE;
+    }
+
+    /* 3. encode as CBOR */
+    // We're going to reuse the buffer, as CBOR is usually shorter than the equivalent JSON
+    CborEncoder encoder;
+    cbor_encoder_init(&encoder, buffer, buffersize, 0);
+    CborError err = decode_json(doc, &encoder);
+
+    cJSON_Delete(doc);
+
+    if (err) {
+        fprintf(stderr, "json2cbor: %s: error encoding to CBOR: %s\n", fname,
+                cbor_error_string(err));
+        return EXIT_FAILURE;
+    }
+
+    fwrite(buffer, 1, encoder.data.ptr - buffer, stdout);
+    free(buffer);
+    return EXIT_SUCCESS;
+}

lib/cbor/tinycbor/tools/json2cbor/json2cbor.pro

@@ -0,0 +1,20 @@
+TEMPLATE = app
+CONFIG += console
+CONFIG -= app_bundle
+CONFIG -= qt
+DESTDIR = ../../bin
+
+CBORDIR = $$PWD/../../src
+INCLUDEPATH += $$CBORDIR
+SOURCES += json2cbor.c
+LIBS += ../../lib/libtinycbor.a
+
+CJSONDIR = .
+!exists($$CJSONDIR/cJSON.h): CJSONDIR = $$CBORDIR/cjson
+exists($$CJSONDIR/cJSON.h) {
+    INCLUDEPATH += $$CJSONDIR
+    SOURCES += $$CJSONDIR/cJSON.c
+} else {
+    message("cJSON not found, not building json2cbor.")
+    TEMPLATE = aux
+}

tools/cmake/common.cmake

@@ -8,6 +8,7 @@ set(COMPONENTS "")
 
 # External dependencies
 list(APPEND EXTRA_COMPONENT_DIRS "$ENV{PROJ_PATH}/lib/catch2")
+list(APPEND EXTRA_COMPONENT_DIRS "$ENV{PROJ_PATH}/lib/cbor")
 list(APPEND EXTRA_COMPONENT_DIRS "$ENV{PROJ_PATH}/lib/libmad")
 list(APPEND EXTRA_COMPONENT_DIRS "$ENV{PROJ_PATH}/lib/lvgl")
 list(APPEND EXTRA_COMPONENT_DIRS "$ENV{PROJ_PATH}/lib/result")